CVE-2026-1323 | Mailqueue Extension up to 0.4.4/0.5.1 on TYPO3 deserialization

A vulnerability classified as critical has been found in Mailqueue Extension up to 0.4.4/0.5.1 on TYPO3. The affected element is an unknown function. Performing a manipulation results in deserialization.

This vulnerability is reported as CVE-2026-1323. The attack is possible to be carried out remotely. No exploit exists.

It is recommended to upgrade the affected component.