🛡️ CVE-2025-23209 — craft-cms

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-94 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Craft CMS has a potential RCE with a compromised security key

Impact

This is an RCE vulnerability that affects Craft 4 and 5 installs where your security key has already been compromised.

https://craftcms.com/knowledge-base/securing-craft#keep-your-secrets-secret

Anyone running an unpatched version of Craft with a compromised security key is affected.

Patches

This has been patched in Craft 5.5.8 and 4.13.8.

Workarounds

If you can't update to a patched version, then rotating your security key and ensuring its privacy will help to migitgate the issue.

References

https://github.com/craftcms/cms/commit/e59e22b30c9dd39e5e2c7fe02c147bcbd004e603

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs low-level privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2025-23209 is classified as CWE-94: Code Injection. Input is incorporated into code that the runtime evaluates, so an attacker can have their own code executed.

Affected software

CVE-2025-23209 is recorded against 2 packages.

  • craft-cms
  • craftcms/cms (from 4.0.0-RC1 up to 4.13.8)

Timeline and source

Published on 18 January 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

craftcms.com
github.com
github.com
www.cisa.gov

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
CWE CWE-94
Public Exploit ✅ No
Source NVD
Published 2025-01-18
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
craft-cms — —
craftcms/cms 4.0.0-RC1 4.13.8

Similar Threats

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