GHSA-q9c4-9v5m-597p Typo3 Information Disclosure in Backend User Interface

• Packagist typo3/cms: >= 8.0.0, < 8.7.27 → fixed in 8.7.27 • Packagist typo3/cms: >= 9.0.0, < 9.5.8 → fixed in 9.5.8

The element information component used to display properties of a certain record is susceptible to information disclosure. The list of references from or to the record is not properly checked for the backend user’s permissions. A valid backend user account is needed in order to exploit this vulnerability.