{"api_version":"1","generated_at":"2026-07-23T04:53:49+00:00","cve":"CVE-2016-9499","urls":{"html":"https://cve.report/CVE-2016-9499","api":"https://cve.report/api/cve/CVE-2016-9499.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2016-9499","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-9499"},"summary":{"title":"CVE-2016-9499","description":"Accellion FTP server prior to version FTA_9_12_220 only returns the username in the server response if the username is invalid. An attacker may use this information to determine valid user accounts and enumerate them.","state":"PUBLIC","assigner":"cert@cert.org","published_at":"2018-07-13 20:29:00","updated_at":"2019-10-09 23:20:00"},"problem_types":["CWE-200"],"metrics":[],"references":[{"url":"https://www.qualys.com/2016/12/06/qsa-2016-12-06/qsa-2016-12-06.pdf","name":"https://www.qualys.com/2016/12/06/qsa-2016-12-06/qsa-2016-12-06.pdf","refsource":"MISC","tags":["Exploit","Third Party Advisory"],"title":"","mime":"application/pdf","httpstatus":"200","archivestatus":"200"},{"url":"https://www.securityfocus.com/bid/96154","name":"96154","refsource":"BID","tags":["Third Party Advisory","VDB Entry"],"title":"Accellion FTP server Information Disclosure and Cross-Site Scripting Vulnerabilities","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://www.kb.cert.org/vuls/id/745607","name":"VU#745607","refsource":"CERT-VN","tags":["Third Party Advisory","US Government Resource"],"title":"Vulnerability Note VU#745607 - Accellion FTP server contains information exposure and cross-site scripting vulnerabilities","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-9499","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-9499","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"LEGACY","value":"Thanks to Ashish Kamble for reporting this vulnerability.","lang":""}],"nvd_cpes":[{"cve_year":"2016","cve_id":"9499","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"accellion","cpe5":"ftp_server","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"9499","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"accellion","cpe5":"ftp_server","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cert@cert.org","ID":"CVE-2016-9499","STATE":"PUBLIC","TITLE":"The Accellion FTP server prior to version FTA_9_12_220 is vulnerable to cross-site scripting."},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"FTP Server","version":{"version_data":[{"affected":"<","version_name":" FTA_9_12_220","version_value":" FTA_9_12_220"}]}}]},"vendor_name":"Accellion"}]}},"credit":[{"lang":"eng","value":"Thanks to Ashish Kamble for reporting this vulnerability."}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Accellion FTP server prior to version FTA_9_12_220 only returns the username in the server response if the username is invalid. An attacker may use this information to determine valid user accounts and enumerate them."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-204"}]}]},"references":{"reference_data":[{"name":"https://www.qualys.com/2016/12/06/qsa-2016-12-06/qsa-2016-12-06.pdf","refsource":"MISC","url":"https://www.qualys.com/2016/12/06/qsa-2016-12-06/qsa-2016-12-06.pdf"},{"name":"96154","refsource":"BID","url":"https://www.securityfocus.com/bid/96154"},{"name":"VU#745607","refsource":"CERT-VN","url":"https://www.kb.cert.org/vuls/id/745607"}]},"solution":[{"lang":"eng","value":"Both issues have been addressed in the most recent version FTA_9_12_220, released on 31 January 2017. Previously, CVE-2016-9500 was addressed in FTA_9_12_160 released on 29 November 2016."}],"source":{"discovery":"UNKNOWN"}},"nvd":{"publishedDate":"2018-07-13 20:29:00","lastModifiedDate":"2019-10-09 23:20:00","problem_types":["CWE-200"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"},"exploitabilityScore":3.9,"impactScore":1.4},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:N/A:N","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:accellion:ftp_server:*:*:*:*:*:*:*:*","versionEndExcluding":"fta_9_12_220","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2016","CveId":"9499","Ordinal":"96184","Title":"CVE-2016-9499","CVE":"CVE-2016-9499","Year":"2016"},"notes":[{"CveYear":"2016","CveId":"9499","Ordinal":"1","NoteData":"Accellion FTP server prior to version FTA_9_12_220 only returns the username in the server response if the username is invalid. An attacker may use this information to determine valid user accounts and enumerate them.","Type":"Description","Title":null},{"CveYear":"2016","CveId":"9499","Ordinal":"2","NoteData":"2018-07-13","Type":"Other","Title":"Published"},{"CveYear":"2016","CveId":"9499","Ordinal":"3","NoteData":"2018-07-13","Type":"Other","Title":"Modified"}]}}}