CVE-2025-23209
Potential RCE with a compromised security key in craft/cms
Craft CMS Code Injection Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA notes
https://github.com/craftcms/cms/security/advisories/GHSA-x684-96hh-833x ; https://nvd.nist.gov/vuln/detail/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.
Severity
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:HAffected Products
| Vendor | Product | Affected versions |
|---|---|---|
| craftcms | cms | >= 5.0.0-RC1, < 5.5.5 >= 4.0.0-RC1, < 4.13.8 |
References
3 LinksRecord Details
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