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.

CVSS v3.1 Score

8.0

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild.

Added: Feb 20, 2025 Remediation due: Mar 13, 2025

Weakness Type (CWE)

CWE-94 CWE-94

Affected Products

Vendor	Product	Versions
craftcms	craft_cms	< 4.13.8
craftcms	craft_cms	< 5.5.8
craftcms	craft_cms	All
craftcms	craft_cms	All
craftcms	craft_cms	All
craftcms	craft_cms	All
craftcms	craft_cms	All
craftcms	craft_cms	All

References

Advisories & Patches

https://github.com/craftcms/cms/commit/e59e22b30c9dd39e5e2c7fe02c147bcbd004e603 https://github.com/craftcms/cms/security/advisories/GHSA-x684-96hh-833x

Other References

https://craftcms.com/knowledge-base/securing-craft#keep-your-secrets-secret https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-23209

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. It has a CVSS v3.1 base score of 8.0 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2025-23209? +

CVE-2025-23209 has a CVSS v3.1 score of 8.0 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-23209? +

CVE-2025-23209 affects products from craftcms, specifically: craft_cms. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-23209? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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