SARA / Free Tools / CVE / CVE-2025-23209

CVE-2025-23209 — Craft CMS Code Injection Vulnerability

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

CVSS
8.1 HIGH
EPSS
19.13% (top 4.70%)
CWE
CWE-94
Published
2025-01-18T00:32:54.954Z
Last modified
2026-02-26T19:09:05.707Z
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
CISA KEV — Actively Exploited
Added to KEV
2025-02-20
BOD 22-01 due
2025-03-13
Ransomware use
Unknown

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
craftcmscms>= 5.0.0-RC1, < 5.5.5, >= 4.0.0-RC1, < 4.13.8

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2025-02-20. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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