{"api_version":"1","generated_at":"2026-07-23T19:19:35+00:00","cve":"CVE-2021-3731","urls":{"html":"https://cve.report/CVE-2021-3731","api":"https://cve.report/api/cve/CVE-2021-3731.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-3731","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-3731"},"summary":{"title":"CVE-2021-3731","description":"LedgerSMB does not sufficiently guard against being wrapped by other sites, making it vulnerable to 'clickjacking'. This allows an attacker to trick a targetted user to execute unintended actions.","state":"PUBLIC","assigner":"security@huntr.dev","published_at":"2021-08-23 13:15:00","updated_at":"2021-08-27 15:16:00"},"problem_types":["CWE-1021"],"metrics":[],"references":[{"url":"https://ledgersmb.org/cve-2021-3731-clickjacking","name":"https://ledgersmb.org/cve-2021-3731-clickjacking","refsource":"CONFIRM","tags":[],"title":"Security advisory for CVE-2021-3731 (Clickjacking) | LedgerSMB","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.debian.org/security/2021/dsa-4962","name":"DSA-4962","refsource":"DEBIAN","tags":[],"title":"Debian -- Security Information -- DSA-4962-1 ledgersmb","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://huntr.dev/bounties/5664331d-f5f8-4412-8566-408f8655888a","name":"https://huntr.dev/bounties/5664331d-f5f8-4412-8566-408f8655888a","refsource":"CONFIRM","tags":[],"title":"huntr: Disclose & Fix Security Vulnerabilities in Open Source","mime":"text/html","httpstatus":"404","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-3731","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3731","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"3731","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"10.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3731","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"11.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3731","vulnerable":"1","versionEndIncluding":"1.1.12","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ledgersmb","cpe5":"ledgersmb","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3731","vulnerable":"1","versionEndIncluding":"1.2.26","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ledgersmb","cpe5":"ledgersmb","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3731","vulnerable":"1","versionEndIncluding":"1.3.47","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ledgersmb","cpe5":"ledgersmb","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3731","vulnerable":"1","versionEndIncluding":"1.4.42","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ledgersmb","cpe5":"ledgersmb","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3731","vulnerable":"1","versionEndIncluding":"1.5.30","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ledgersmb","cpe5":"ledgersmb","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3731","vulnerable":"1","versionEndIncluding":"1.6.33","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ledgersmb","cpe5":"ledgersmb","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3731","vulnerable":"1","versionEndIncluding":"1.7.32","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ledgersmb","cpe5":"ledgersmb","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3731","vulnerable":"1","versionEndIncluding":"1.8.17","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ledgersmb","cpe5":"ledgersmb","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-3731","qid":"178772","title":"Debian Security Update for ledgersmb (DSA 4962-1)"},{"cve":"CVE-2021-3731","qid":"184670","title":"Debian Security Update for ledgersmb (CVE-2021-3731)"},{"cve":"CVE-2021-3731","qid":"198528","title":"Ubuntu Security Notification for LedgerSMB Vulnerabilities (USN-5097-1)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"security@huntr.dev","ID":"CVE-2021-3731","STATE":"PUBLIC","TITLE":"Improper Restriction of Rendered UI Layers or Frames in ledgersmb/ledgersmb"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"ledgersmb/ledgersmb","version":{"version_data":[{"version_affected":"!","version_value":"1.7.33"},{"version_affected":"<","version_value":"1.8.18"}]}}]},"vendor_name":"ledgersmb"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"LedgerSMB does not sufficiently guard against being wrapped by other sites, making it vulnerable to 'clickjacking'. This allows an attacker to trick a targetted user to execute unintended actions."}]},"impact":{"cvss":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-1021 Improper Restriction of Rendered UI Layers or Frames"}]}]},"references":{"reference_data":[{"name":"https://huntr.dev/bounties/5664331d-f5f8-4412-8566-408f8655888a","refsource":"CONFIRM","url":"https://huntr.dev/bounties/5664331d-f5f8-4412-8566-408f8655888a"},{"name":"https://ledgersmb.org/cve-2021-3731-clickjacking","refsource":"CONFIRM","url":"https://ledgersmb.org/cve-2021-3731-clickjacking"},{"refsource":"DEBIAN","name":"DSA-4962","url":"https://www.debian.org/security/2021/dsa-4962"}]},"source":{"advisory":"5664331d-f5f8-4412-8566-408f8655888a","discovery":"EXTERNAL"}},"nvd":{"publishedDate":"2021-08-23 13:15:00","lastModifiedDate":"2021-08-27 15:16:00","problem_types":["CWE-1021"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":4.7,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":1.4},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:P/A:N","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE","baseScore":4.3},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:*","versionStartIncluding":"1.8.0","versionEndIncluding":"1.8.17","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:*","versionStartIncluding":"1.7.0","versionEndIncluding":"1.7.32","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:*","versionStartIncluding":"1.6.0","versionEndIncluding":"1.6.33","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:*","versionStartIncluding":"1.5.0","versionEndIncluding":"1.5.30","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:*","versionStartIncluding":"1.4.0","versionEndIncluding":"1.4.42","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:*","versionStartIncluding":"1.3.0","versionEndIncluding":"1.3.47","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:*","versionStartIncluding":"1.2.0","versionEndIncluding":"1.2.26","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:*","versionStartIncluding":"1.1.0","versionEndIncluding":"1.1.12","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"3731","Ordinal":"215057","Title":"CVE-2021-3731","CVE":"CVE-2021-3731","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"3731","Ordinal":"1","NoteData":"LedgerSMB does not sufficiently guard against being wrapped by other sites, making it vulnerable to 'clickjacking'. This allows an attacker to trick a targetted user to execute unintended actions.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"3731","Ordinal":"2","NoteData":"2021-08-23","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"3731","Ordinal":"3","NoteData":"2021-08-24","Type":"Other","Title":"Modified"}]}}}