CVE-2026-121551

NameCVE-2026-121551
DescriptionPostfixAdmin 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1153545

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
postfixadmin (PTS)bookworm3.3.13-1vulnerable
trixie3.3.15+ds-2vulnerable
forky, sid4.0.5+ds+~cs20.241.5-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
postfixadminsource(unstable)4.0.6+ds+~cs20.241.7-11153545

Notes

https://github.com/postfixadmin/postfixadmin/issues/1185
https://github.com/postfixadmin/postfixadmin/pull/1172
https://github.com/postfixadmin/postfixadmin/pull/1186
https://github.com/postfixadmin/postfixadmin/commit/0a894b08769481ce1a7f0f42af901c6d9f88fa9c (postfixadmin-4.0.6)

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