{"id":"CVE-2026-121551","title":"PostfixAdmin through 4.0.5 Stored XSS via TOTP Exception Description","summary":"PostfixAdmin through 4.0.5 contains a stored cross-site scripting vulnerability that allows authenticated mailbox users to inject script by creating a TOTP exception with an unescaped description. When a global administrator views totp-e…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"postfixadmin","product":"postfixadmin","affected":["postfixadmin <= 4.0.5"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-03T17:21:11.734226Z"},"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T18:27:55.973Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121551","references":[{"url":"https://github.com/postfixadmin/postfixadmin/issues/1185","label":"GitHub Issue #1185"},{"url":"https://github.com/postfixadmin/postfixadmin"},{"url":"https://github.com/postfixadmin/postfixadmin/commit/0a894b08769481ce1a7f0f42af901c6d9f88fa9c","label":"Fix commit"},{"url":"https://github.com/postfixadmin/postfixadmin/blob/v4.0.5/public/users/totp-exceptions.php#L128"},{"url":"https://github.com/postfixadmin/postfixadmin/blob/v4.0.5/templates/totp-exceptions.tpl#L56"},{"url":"https://github.com/postfixadmin/postfixadmin/pull/1172"},{"url":"https://github.com/postfixadmin/postfixadmin/pull/1186"},{"url":"https://www.vulncheck.com/advisories/postfixadmin-through-4.0.5-stored-xss-via-totp-exception-description","label":"VulnCheck Advisory: PostfixAdmin through 4.0.5 Stored XSS via TOTP Exception Description"}],"tags":["cve.org"],"epss":0.00283,"epssPercentile":0.20919,"ingestedAt":"2026-11-05T20:33:06.352Z","slug":"CVE-2026-121551","body":"## Overview\n\nPostfixAdmin through 4.0.5 contains a stored cross-site scripting vulnerability that allows authenticated mailbox users to inject script by creating a TOTP exception with an unescaped description. When a global administrator views totp-exceptions.php, the script runs in the admin session and can issue authenticated admin requests using the page's CSRF token.\n\n## Affected\n\n- `postfixadmin <= 4.0.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}