CVE-2025-23209

CVE Published	2025-01-18
Related CWE(s)	CWE-94: Improper Control of Generation of Code ('Code Injection')
Related Vendor(s)	craftcms
Related Product(s)	craft_cms
Exploitation Reported (CISA KEV)	2025-02-20
CVSS 3 Base Score	8.1 (HIGH)
CVSS 3 Attack Complexity	HIGH
CVSS 3 Attack Vector	NETWORK

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.

Cyber Threat Graph Context

Explore how this CVE relates to the wider threat graph

Associated CAPEC Patterns

Manipulating User-Controlled Variables (CAPEC-77)

This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An adversary can override variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the adversary can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.

Leverage Executable Code in Non-Executable Files (CAPEC-35)

An attack of this type exploits a system's trust in configuration and resource files. When the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high.

Code Injection (CAPEC-242)

An adversary exploits a weakness in input validation on the target to inject new code into that which is currently executing. This differs from code inclusion in that code inclusion involves the addition or replacement of a reference to a code file, which is subsequently loaded by the target and used as part of the code of some application.

References

CVE.org

View more information about CVE-2025-23209 on the official MITRE CVE website.

NIST National Vulnerability Database

CVE-2025-23209 on the NIST NVD.

CISA Known Exploited Vulnerabilities