CVE-2026-77146

Description

The extension's invitation controller fails to stop processing after redirecting on invalid input (missing hash, non-existent, disabled, or deleted users), allowing an unauthenticated attacker to set a new password for and re-enable an arbitrary existing frontend user account. This vulnerability is only present in the 8.x versions of the extension.

References

• https://typo3.org/security/advisory/typo3-ext-sa-2026-024