CVE-2025-68455
Published: 05 January 2026
Summary
CVE-2025-68455 is a high-severity Unsafe Reflection (CWE-470) vulnerability in Craftcms Craft Cms. Its CVSS base score is 8.6 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 47.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-2 (Flaw Remediation) and AC-6 (Least Privilege).
Deeper analysis
Craft is a platform for creating digital experiences that is affected by CVE-2025-68455, a vulnerability assigned CWE-470. Versions 5.0.0-RC1 through 5.8.20 and 4.0.0-RC1 through 4.16.16 contain the flaw, which permits potential authenticated remote code execution through a malicious attached Behavior. The issue carries a CVSS 4.0 score of 8.6 with network attack vector, low complexity, and high impact on confidentiality, integrity, and availability when administrator privileges are present.
An attacker must already possess administrator access to the Craft Control Panel to exploit the vulnerability. With that access, the malicious Behavior can be attached to trigger remote code execution on the server.
The referenced GitHub security advisory GHSA-255j-qw47-wjh5 and associated changelog entries direct users to upgrade to the patched releases 5.8.21 or 4.16.17. Commits that address the issue are listed in the Craft CMS repository for both the 5.x and 4.x branches.
EPSS scores remain low, with a current value of 0.0114 and a peak of 0.0151.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-0824
Vulnerability details
Craft is a platform for creating digital experiences. Versions 5.0.0-RC1 through 5.8.20 and 4.0.0-RC1 through 4.16.16 are vulnerable to potential authenticated Remote Code Execution via malicious attached Behavior. Note that attackers must have administrator access to the Craft Control Panel…
more
for this to work. Users should update to the patched versions (5.8.21 and 4.16.17) to mitigate the issue.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Authenticated RCE in public-facing Craft CMS directly matches exploitation of a vulnerable web application for code execution on the server.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly addresses the CVE by requiring timely patching to fixed Craft CMS versions 5.8.21 or 4.16.17 to eliminate the RCE vulnerability.
Vulnerability scanning identifies affected Craft CMS versions in the specified ranges, enabling prioritization for remediation.
Least privilege limits administrator access to the Craft Control Panel, reducing the attack surface for authenticated exploitation.