Multiple Vulnerabilities in TYPO3 Extensions

This security advisory identifies multiple vulnerabilities affecting various TYPO3 extensions. These flaws allow remote attackers, whether authenticated or anonymous, to compromise affected installations. The vulnerabilities are diverse in nature, potentially enabling attackers to circumvent existing security measures, access sensitive system or application information, and achieve remote code execution (RCE). Given the modular nature of the TYPO3 ecosystem, the impact is highly dependent on the specific extensions installed in a given environment. Defenders should review all installed TYPO3 extensions against the latest security patches provided by the respective maintainers to mitigate risks associated with unauthorized code execution and data leakage.

Impact

Successful exploitation of these vulnerabilities can lead to full system compromise, unauthorized access to sensitive data, and the execution of arbitrary commands on the underlying web server hosting the TYPO3 installation. The scope of targeting includes any organization utilizing vulnerable versions of TYPO3 extensions.

Recommendation

• Audit all active TYPO3 extensions to identify versions currently in use.
• Apply the latest updates provided by TYPO3 extension developers to address identified security gaps.
• Monitor web server access logs for anomalous HTTP requests targeting TYPO3-specific URL structures or extension-related paths.
• Restrict public access to administrative or sensitive extension endpoints via firewall or web application firewall (WAF) configurations.