TYPO3-EXT-SA-2026-022: Server-Side Template Injection in extension "powermail" (powermail)

PKSA-dhfp-j236-nf9h CVE-2026-77136

Affected version: >=13.0.0,<13.2.1|>=11.0.0,<12.6.1|<10.9.3

Reported by:
FriendsOfPHP/security-advisories