{"api_version":"1","generated_at":"2026-05-13T01:21:16+00:00","cve":"CVE-2026-20172","urls":{"html":"https://cve.report/CVE-2026-20172","api":"https://cve.report/api/cve/CVE-2026-20172.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-20172","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-20172"},"summary":{"title":"Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability","description":"A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent.\r\n\r\nThis vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks. ","state":"PUBLISHED","assigner":"cisco","published_at":"2026-05-06 17:16:20","updated_at":"2026-05-06 18:59:53"},"problem_types":["CWE-646","CWE-646 Reliance on File Name or Extension of Externally-Supplied File"],"metrics":[{"version":"3.1","source":"psirt@cisco.com","type":"Primary","score":"4.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSSV3_1","score":"4.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb","name":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb","refsource":"psirt@cisco.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-20172","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20172","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)_ES6","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES8","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)_ES5a","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES9","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)_ES6_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES6","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES3_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)_ES3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES11","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)_ES4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)_ES5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES9a","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES10","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)_ES1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.5(1)","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)_ES2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES7","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES3_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)_ES6_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES12","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ET3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES4_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)_ES6_ET3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES1_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6_ES2_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6_ES2_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)_ES7","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6_ES2_ET3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.0(1)_ES7_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES5_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6_ES2_ET4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 11.6(1)_ES12_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6_ES3_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES6","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6_ES3_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES7","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES4_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES5_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES5_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES6","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES6_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES8","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES6_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES7","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES8","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES4_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES3_ET3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES2_ET5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES1_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES8_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES7_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES6_ET3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES5_ET3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES8_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES3_ET3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES5_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES6_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES4_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES7_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES8_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES9","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES9_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES9","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES9_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES9_ET3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES10","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES10_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 15.0(1)","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES11","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 15.0(1)_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 15.0(1)ES202508","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES11_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES11_ET2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES12","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 15.0(1)ES202511","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.6(1)_ES12_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 15.0(1)ES202511_ET1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Enterprise Chat and Email","version":"affected 12.5(1)_ES10","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[{"source":"CNA","title":"","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.","time":"","lang":"en"}],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-20172","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-05-06T17:45:56.726902Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-05-06T17:46:04.178Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unknown","product":"Cisco Enterprise Chat and Email","vendor":"Cisco","versions":[{"status":"affected","version":"11.6(1)_ES3"},{"status":"affected","version":"11.6(1)_ES4"},{"status":"affected","version":"12.0(1)_ES6"},{"status":"affected","version":"11.6(1)_ES8"},{"status":"affected","version":"12.0(1)_ES5a"},{"status":"affected","version":"11.6(1)_ES9"},{"status":"affected","version":"12.0(1)_ES6_ET1"},{"status":"affected","version":"11.6(1)_ES6"},{"status":"affected","version":"11.6(1)_ES5"},{"status":"affected","version":"12.5(1)_ET1"},{"status":"affected","version":"12.5(1)"},{"status":"affected","version":"12.5(1)_ES3_ET1"},{"status":"affected","version":"12.0(1)_ES3"},{"status":"affected","version":"11.6(1)_ES11"},{"status":"affected","version":"12.0(1)_ES4"},{"status":"affected","version":"12.0(1)_ES5"},{"status":"affected","version":"11.6(1)_ES2"},{"status":"affected","version":"11.6(1)_ES9a"},{"status":"affected","version":"11.6(1)_ES10"},{"status":"affected","version":"12.0(1)_ES1"},{"status":"affected","version":"12.0(1)"},{"status":"affected","version":"12.5(1)_ES3"},{"status":"affected","version":"12.6(1)"},{"status":"affected","version":"11.5(1)"},{"status":"affected","version":"12.0(1)_ES2"},{"status":"affected","version":"11.6(1)_ES7"},{"status":"affected","version":"12.5(1)_ES2"},{"status":"affected","version":"12.6(1)_ET1"},{"status":"affected","version":"11.6(1)"},{"status":"affected","version":"12.5(1)_ES1"},{"status":"affected","version":"12.6(1)_ET2"},{"status":"affected","version":"12.5(1)_ES3_ET2"},{"status":"affected","version":"12.0(1)_ES6_ET2"},{"status":"affected","version":"12.6(1)_ES1"},{"status":"affected","version":"12.5(1)_ES4"},{"status":"affected","version":"11.6(1)_ES12"},{"status":"affected","version":"12.6(1)_ET3"},{"status":"affected","version":"12.5(1)_ES4_ET1"},{"status":"affected","version":"12.0(1)_ES6_ET3"},{"status":"affected","version":"12.6(1)_ES1_ET1"},{"status":"affected","version":"12.6(1)_ES2"},{"status":"affected","version":"12.6_ES2_ET1"},{"status":"affected","version":"12.5(1)_ES5"},{"status":"affected","version":"12.6_ES2_ET2"},{"status":"affected","version":"12.0(1)_ES7"},{"status":"affected","version":"12.6_ES2_ET3"},{"status":"affected","version":"12.0(1)_ES7_ET1"},{"status":"affected","version":"12.5(1)_ES5_ET1"},{"status":"affected","version":"12.6_ES2_ET4"},{"status":"affected","version":"12.6(1)_ES3"},{"status":"affected","version":"11.6(1)_ES12_ET1"},{"status":"affected","version":"12.6_ES3_ET1"},{"status":"affected","version":"12.5(1)_ES6"},{"status":"affected","version":"12.6_ES3_ET2"},{"status":"affected","version":"12.6(1)_ES4"},{"status":"affected","version":"12.5(1)_ES7"},{"status":"affected","version":"12.6(1)_ES4_ET1"},{"status":"affected","version":"12.6(1)_ES5"},{"status":"affected","version":"12.6(1)_ES5_ET1"},{"status":"affected","version":"12.6(1)_ES5_ET2"},{"status":"affected","version":"12.6(1)_ES6"},{"status":"affected","version":"12.6(1)_ES6_ET1"},{"status":"affected","version":"12.5(1)_ES8"},{"status":"affected","version":"12.6(1)_ES6_ET2"},{"status":"affected","version":"12.6(1)_ES7"},{"status":"affected","version":"12.6(1)_ES8"},{"status":"affected","version":"12.6(1)_ES4_ET2"},{"status":"affected","version":"12.6(1)_ES3_ET3"},{"status":"affected","version":"12.6(1)_ES2_ET5"},{"status":"affected","version":"12.6(1)_ES1_ET2"},{"status":"affected","version":"12.6(1)_ES8_ET1"},{"status":"affected","version":"12.6(1)_ES7_ET1"},{"status":"affected","version":"12.6(1)_ES6_ET3"},{"status":"affected","version":"12.6(1)_ES5_ET3"},{"status":"affected","version":"12.5(1)_ES8_ET1"},{"status":"affected","version":"12.5(1)_ES3_ET3"},{"status":"affected","version":"12.5(1)_ES5_ET2"},{"status":"affected","version":"12.5(1)_ES6_ET1"},{"status":"affected","version":"12.5(1)_ES4_ET2"},{"status":"affected","version":"12.5(1)_ES7_ET1"},{"status":"affected","version":"12.6(1)_ES8_ET2"},{"status":"affected","version":"12.6(1)_ES9"},{"status":"affected","version":"12.6(1)_ES9_ET1"},{"status":"affected","version":"12.5(1)_ES9"},{"status":"affected","version":"12.6(1)_ES9_ET2"},{"status":"affected","version":"12.6(1)_ES9_ET3"},{"status":"affected","version":"12.6(1)_ES10"},{"status":"affected","version":"12.6(1)_ES10_ET1"},{"status":"affected","version":"15.0(1)"},{"status":"affected","version":"12.6(1)_ES11"},{"status":"affected","version":"15.0(1)_ET1"},{"status":"affected","version":"15.0(1)ES202508"},{"status":"affected","version":"12.6(1)_ES11_ET1"},{"status":"affected","version":"12.6(1)_ES11_ET2"},{"status":"affected","version":"12.6(1)_ES12"},{"status":"affected","version":"15.0(1)ES202511"},{"status":"affected","version":"12.6(1)_ES12_ET1"},{"status":"affected","version":"15.0(1)ES202511_ET1"},{"status":"affected","version":"12.5(1)_ES10"}]}],"descriptions":[{"lang":"en","value":"A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent.\r\n\r\nThis vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks. "}],"exploits":[{"lang":"en","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"format":"cvssV3_1"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-646","description":"Reliance on File Name or Extension of Externally-Supplied File","lang":"en","type":"cwe"}]}],"providerMetadata":{"dateUpdated":"2026-05-06T16:15:37.789Z","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","shortName":"cisco"},"references":[{"name":"cisco-sa-ece-lite-agent-BCgSN8eb","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb"}],"source":{"advisory":"cisco-sa-ece-lite-agent-BCgSN8eb","defects":["CSCws79262"],"discovery":"EXTERNAL"},"title":"Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability"}},"cveMetadata":{"assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","assignerShortName":"cisco","cveId":"CVE-2026-20172","datePublished":"2026-05-06T16:15:37.789Z","dateReserved":"2025-10-08T11:59:15.391Z","dateUpdated":"2026-05-06T17:46:04.178Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-06 17:16:20","lastModifiedDate":"2026-05-06 18:59:53","problem_types":["CWE-646","CWE-646 Reliance on File Name or Extension of Externally-Supplied File"],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"20172","Ordinal":"1","Title":"Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerabi","CVE":"CVE-2026-20172","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"20172","Ordinal":"1","NoteData":"A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent.\r\n\r\nThis vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks. ","Type":"Description","Title":"Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerabi"}]}}}