CVE-2025-23209
Description
Craft is a flexible, user-friendly CMS for creating custom digital experiences on the web and beyond. This is an remote code execution (RCE) vulnerability that affects Craft 4 and 5 installs where your security key has already been compromised. Anyone running an unpatched version of Craft with a compromised security key is affected. This vulnerability has been patched in Craft 5.5.8 and 4.13.8. Users who cannot update to a patched version, should rotate their security keys and ensure their privacy to help migitgate the issue.
Summary dbcve.org
Craft CMS versions 4 and 5 contain an authenticated Remote Code Execution vulnerability that can be exploited when an attacker already has access to the security key. The vulnerability has been patched in versions 5.5.8 and 4.13.8.
Mitigation
Update Craft CMS to version 5.5.8 or 4.13.8 and rotate all security keys, ensuring any external integrations are updated to use the new keys.