Extension "Forum" vulnerabilities

1 known vulnerability in Extension "Forum" from TYPO3. 1 is rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 8.8 High severity

  Extension "Forum": Authorization Bypass Through User-Controlled Key

  CVE-2026-77143Aug 25, 2026TYPO3

  The frontend topic editing flow does not verify on the server side that the requesting visitor owns the topic being modified. As a result, a visitor who knows the identifier of a topic from the public forum can submit a modified update request for that topic d