CVE-2026-77140

Description

The extension validates the HMAC of a frontend employee edit link only in the action that renders the edit form, not in the action that persists the change. An unauthenticated visitor who knows the UID of a visible employee record can send a direct POST request to the update action and overwrite that record without a valid edit link or any ownership check.

References

• https://typo3.org/security/advisory/typo3-ext-sa-2026-018