CVE-2025-23209
Potential RCE with a compromised security key in craft/cms
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-94 |
| Vendor | craftcms |
| Product | cms |
| Published | Jan 18, 2025 |
| Last Updated | Feb 26, 2026 |
⚠️ Actively Exploited — Act Now
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
craftcms / cms
>= 5.0.0-RC1, < 5.5.5 >= 4.0.0-RC1, < 4.13.8
References
github.com: https://github.com/craftcms/cms/security/advisories/GHSA-x684-96hh-833x github.com: https://github.com/craftcms/cms/commit/e59e22b30c9dd39e5e2c7fe02c147bcbd004e603 craftcms.com: https://craftcms.com/knowledge-base/securing-craft#keep-your-secrets-secret cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-23209