High 8.1Known exploited (CISA KEV)Published Jan 17, 2025

CVE-2025-23209Potential RCE with a compromised security key in craft/cms

Updated under an hour ago (Oct 27, 2026, 3:10 AM ET)

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It affects craftcms cms and 1 other product. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Feb 20, 2025; federal agencies had to remediate by Mar 13, 2025. Treat that date as your deadline.

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Every CVE for craftcms cms

Exploited in the last 30 days

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.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-94
Known exploited: Added to CISA KEV Feb 20, 2025; federal remediation due Mar 13, 2025Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
EPSS (exploitation in the next 30 days): 21.64% (percentile 98)
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Feb 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

craftcms cms craftcms:cms (from the name)	from 5.0.0-RC1, < 5.5.5; from 4.0.0-RC1, < 4.13.8	CNA record
craftcms craft_cms craftcms:craft_cms	after 4.0.0 before 4.13.8; after 5.0.0 before 5.5.8; 4.0.0; 4.0.0; 4.0.0; 4.0.0; 5.0.0; 5.0.0	NVD

References

References

https://github.com/craftcms/cms/security/advisories/GHSA-x684-96hh-833x	x-refsource-confirm, vendor-advisory
https://github.com/craftcms/cms/commit/e59e22b30c9dd39e5e2c7fe02c147bcbd004e603	x-refsource-misc, patch
https://craftcms.com/knowledge-base/securing-craft#keep-your-secrets-secret	x-refsource-misc, product
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-23209	us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.