CVE-2026-121551
mediumPostfixAdmin through 4.0.5 contains a stored cross-site scripting vulnerability that allows authenticated mailbox users to inject script by creating a TOTP exc…
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/postfixadmin/postfixadmin disclosure@vulncheck.com
- https://github.com/postfixadmin/postfixadmin/blob/v4.0.5/public/users/totp-exceptions.php#... disclosure@vulncheck.com
- https://github.com/postfixadmin/postfixadmin/blob/v4.0.5/templates/totp-exceptions.tpl#L56 disclosure@vulncheck.com
- https://github.com/postfixadmin/postfixadmin/commit/0a894b08769481ce1a7f0f42af901c6d9f88fa... disclosure@vulncheck.com
- https://github.com/postfixadmin/postfixadmin/issues/1185 disclosure@vulncheck.com
- https://github.com/postfixadmin/postfixadmin/pull/1172 disclosure@vulncheck.com
- https://github.com/postfixadmin/postfixadmin/pull/1186 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/postfixadmin-through-4.0.5-stored-xss-via-totp-except... disclosure@vulncheck.com