Typo3 · Typo3 · CVE-2009-4855
**Name of the Vulnerable Software and Affected Versions**
TYPO3 version 4.0
**Description**
A SQL injection issue allows remote attackers to execute arbitrary SQL commands via the `showUid` parameter in index.php. However, the TYPO3 Security Team disputes this report, stating that the `showUid` parameter is generally used in third-party TYPO3 extensions, not in TYPO3 Core.
**Recommendations**
For TYPO3 version 4.0, consider restricting access to the `showUid` parameter in index.php to minimize the risk of exploitation.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.