CyberRota Analysis
AI-GeneratedThe vulnerability exists in the REDAXO content management system, specifically in the mediaIsInUse() handler, which improperly handles unescaped HTML in backend warnings. This flaw allows an administrator with Media Manager access to inject malicious HTML, potentially leading to session theft or unauthorized actions when another administrator interacts with the affected media. Administrators using versions prior to 5.21.2 should prioritize updating to the latest version to mitigate this risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
REDAXO is a PHP-based content management system. Prior to 5.21.2, the mediaIsInUse() handler in redaxo/src/addons/media_manager/lib/media_manager.php inserts a Media Manager type name into raw backend warning HTML without escaping it when invoked through MEDIA_IS_IN_USE. An administrator with Media Manager access can store HTML in a type name, and the payload executes in another administrator's browser when that administrator tries to delete media referenced by the type's effects, enabling session theft or unauthorized backend actions. This issue is fixed in version 5.21.2.
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