CVE-2025-25789

CriticalPublic PoCRCE

Published: 26 February 2025

Published

26 February 2025

Modified

09 April 2025

KEV Added

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Patch

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CVSS Score 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0227 84.8th percentile

Risk Priority 21 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-25789 is a critical-severity Code Injection (CWE-94) vulnerability in Foxcms Foxcms. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 15.2% 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-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match

prevent

Directly mitigates the RCE vulnerability by requiring timely patching or updating of FoxCMS to remediate the flawed index() method in Sitemap.php.

SI-10 Information Input Validation good match

prevent

Enforces validation and sanitization of inputs to the Sitemap controller's index() method, preventing code injection exploits (CWE-94) that lead to unauthenticated RCE.

SC-7 Boundary Protection partial match

preventdetect

Deploys boundary protections like web application firewalls to monitor and block remote exploitation attempts targeting the vulnerable Sitemap.php endpoint.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

Direct unauthenticated RCE in public-facing web app component enables initial access via exploitation of public-facing application.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

FoxCMS v1.2.5 was discovered to contain a remote code execution (RCE) vulnerability via the index() method at \controller\Sitemap.php.

Deeper analysisAI

CVE-2025-25789 is a remote code execution (RCE) vulnerability (CWE-94) in FoxCMS version 1.2.5, published on 2025-02-26. The flaw exists in the index() method within the \controller\Sitemap.php component, earning a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Unauthenticated attackers with network access can exploit this vulnerability remotely with low attack complexity and no user interaction required. Successful exploitation grants high-impact control over confidentiality, integrity, and availability, enabling arbitrary code execution on the affected system.

Advisories and further details are available via references including http://foxcms.com, https://www.foxcms.cn/, and https://github.com/Ka7arotto/FoxCMS/blob/main/FoxCMS-rce3.md.