Vulnerability in TYPO3 Extension "Mail"

[ Description ]Official description

Backend actions and ajax routes of the mail module do not check whether the backend user has access to the page of the requested mail or recipient group. Backend users with access to the mail module can view, change, send and export mails and recipient groups outside their web mounts, including the personal data of recipients.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund3 Nov 2026WID-SEC-2026-4322

  TYPO3 Extension (Mail): Multiple vulnerabilities Translated from German

  Risk mediumCVE-2026-120331CVE-2026-120330CVE-2026-120333+4 more CVEs

[ References ]References

• typo3.org/security/advisory/typo3-ext-sa-2026-037