Craft CMS Code Injection Vulnerability
craftcms — cms
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.
8.1
4.4%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
- Published
- Jan 18, 2025
- Modified
- Feb 26, 2026
- Added to KEV
- Feb 20, 2025
- Federal patch due
- Mar 13, 2025
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Weakness classification
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2025-23209, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2025-23209 were found at last check. Absence here is not proof no exploit exists - see the references below for vendor advisories and write-ups.
References
Frequently asked questions
What is CVE-2025-23209?
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.
How severe is CVE-2025-23209?
CVE-2025-23209 has a CVSS base score of 8.1 out of 10 (CVSS 3.1).
Is CVE-2025-23209 actively exploited in the wild?
Yes. CVE-2025-23209 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Feb 20, 2025, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2025-23209?
4.4% - meaning FIRST.org's EPSS model estimates a 4.4% probability this vulnerability will be exploited in the wild within 30 days (90% percentile among all scored CVEs).
What type of vulnerability is CVE-2025-23209?
CVE-2025-23209 is classified under CWE-94 (CWE-94: Improper Control of Generation of Code ('Code Injection')).
Cross-checked against
Impactr finds and proves whether CVE-2025-23209 - or flaws like it - are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.
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