Vulnerability Intelligence Report
Potential RCE with a compromised security key in craft/cms
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.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
8.1
HIGH
Exploitability:1.3
Impact Score:6.1
EPSS Probability:4.13%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-94 ↗CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| craftcms | cms | >= 5.0.0-RC1, < 5.5.5 (affected), >= 4.0.0-RC1, < 4.13.8 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2025-01-13T17:15:41 |
| Published | 2025-01-18T00:32:54 |
| Last Updated | 2026-02-26T19:09:05 |
Community Chatter & Buzz