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CVE-2025-23209— Potential RCE with a compromised security key in craft/cms

Quick assessment

Affected
craftcms cms
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Craft CMS是Craft CMS开源的一套内容管理系统（CMS）。 Craft CMS 5.0.0-RC1至5.5.5之前版本和4.0.0-RC1至4.13.8之前版本存在代码注入漏洞，该漏洞源于存在安全密钥泄露，导致容易受到远程代码执行漏洞的攻击。

CVSS 8.1 · High KEV EPSS 21.78% · P98

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-23209

Vulnerability Information
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Vulnerability Title
Potential RCE with a compromised security key in craft/cms
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Craft CMS 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Craft CMS是Craft CMS开源的一套内容管理系统（CMS）。 Craft CMS 5.0.0-RC1至5.5.5之前版本和4.0.0-RC1至4.13.8之前版本存在代码注入漏洞，该漏洞源于存在安全密钥泄露，导致容易受到远程代码执行漏洞的攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
craftcms cms >= 5.0.0-RC1, < 5.5.5 -

II. Public POCs for CVE-2025-23209

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8348 chars
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III. Intelligence Information for CVE-2025-23209

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Patches & Fixes for CVE-2025-23209 (1)

Vendor Advisories for CVE-2025-23209 (1)

Vendor Pages for CVE-2025-23209 (1)

IV. Related Vulnerabilities

Same product: cms
Same vendor: craftcms
Same weakness: CWE-94

V. Comments for CVE-2025-23209

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