TI-2026-84357 CVE-2026-121551 · GHSA-3mcr-px3q-mcw8Stored cross-site scripting in PostfixAdmin TOTP exceptionsPriority LOW 23PostfixAdmin 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.CVSS 4.0MEDIUM 5.1· Network · Low privileges · User interaction · EPSS 0.00283 · Published 2026-11-03 · No fix listed CWE-79