CVE-2023-47127

Summary

CVE-2023-47127 affects TYPO3, an open-source PHP web content management system. In installations with multiple sites, such as first.example.org and second.example.com, a session cookie generated for one site can be reused on the other site without requiring additional authentication. This vulnerability, which allows unauthorized access, has been resolved in versions 8.7.55, 9.5.44, 10.4.41, 11.5.33, and 12.4.8. Users are strongly advised to upgrade as soon as possible, and there are currently no known workarounds for this issue.

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