{"id":"CVE-2026-121551","published":"2026-11-03T16:17:27.077","lastModified":"2026-11-03T19:18:04.723","description":"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-exceptions.php, the script runs in the admin session and can issue authenticated admin requests using the page's CSRF token.","cvssScore":5.4,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/postfixadmin/postfixadmin","tags":[]},{"url":"https://github.com/postfixadmin/postfixadmin/blob/v4.0.5/public/users/totp-exceptions.php#L128","tags":[]},{"url":"https://github.com/postfixadmin/postfixadmin/blob/v4.0.5/templates/totp-exceptions.tpl#L56","tags":[]},{"url":"https://github.com/postfixadmin/postfixadmin/commit/0a894b08769481ce1a7f0f42af901c6d9f88fa9c","tags":[]},{"url":"https://github.com/postfixadmin/postfixadmin/issues/1185","tags":[]},{"url":"https://github.com/postfixadmin/postfixadmin/pull/1172","tags":[]},{"url":"https://github.com/postfixadmin/postfixadmin/pull/1186","tags":[]},{"url":"https://www.vulncheck.com/advisories/postfixadmin-through-4.0.5-stored-xss-via-totp-exception-description","tags":[]}],"exploitRefs":[{"url":"https://github.com/postfixadmin/postfixadmin","tags":[]},{"url":"https://github.com/postfixadmin/postfixadmin/blob/v4.0.5/public/users/totp-exceptions.php#L128","tags":[]},{"url":"https://github.com/postfixadmin/postfixadmin/blob/v4.0.5/templates/totp-exceptions.tpl#L56","tags":[]},{"url":"https://github.com/postfixadmin/postfixadmin/commit/0a894b08769481ce1a7f0f42af901c6d9f88fa9c","tags":[]},{"url":"https://github.com/postfixadmin/postfixadmin/issues/1185","tags":[]},{"url":"https://github.com/postfixadmin/postfixadmin/pull/1172","tags":[]},{"url":"https://github.com/postfixadmin/postfixadmin/pull/1186","tags":[]}],"hasPoc":true,"ai":null}