Cyber Resilience

CVE-2025-25790

CriticalPublic PoC

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 v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0098 57.9th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2025-25790 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) 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 42.1% 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).

Deeper analysis

CVE-2025-25790 is an arbitrary file upload vulnerability in the \controller\LocalTemplate.php component of FoxCMS version 1.2.5. Published on 2025-02-26, it allows attackers to execute arbitrary code by uploading a crafted Zip file and is associated with CWE-434 (Unrestricted Upload of File with Dangerous Type). The issue carries 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), marking it as critical.

Any unauthenticated attacker with network access can exploit this vulnerability due to its low attack complexity and lack of required privileges or user interaction. Successful exploitation enables remote arbitrary code execution, resulting in high impacts to confidentiality, integrity, and availability on the targeted FoxCMS instance.

Advisories and further details, potentially including mitigation guidance, are referenced at http://foxcms.com, https://www.foxcms.cn/, and https://github.com/Ka7arotto/FoxCMS/blob/main/FoxCMS-upload-rce.md.

OWASP Top 10 for Web (2025)

A06:2025 Insecure Design

EU & UK References

Vulnerability details

An arbitrary file upload vulnerability in the component \controller\LocalTemplate.php of FoxCMS v1.2.5 allows attackers to execute arbitrary code via uploading a crafted Zip file.

CWE(s)
CWE-434

Related Threats

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 →
T1505.003 Web Shell Persistence
Adversaries may backdoor web servers with web shells to establish persistent access to systems.
attack.mitre.org →
Why these techniques?

Arbitrary file upload leading to unauthenticated RCE on public-facing FoxCMS web app directly enables T1190 for initial access and T1100 for web shell deployment via crafted ZIP.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-50692Same product: Foxcms Foxcms
CVE-2025-25789Same product: Foxcms Foxcms
CVE-2025-55409Same product: Foxcms Foxcms
CVE-2025-55420Same product: Foxcms Foxcms
CVE-2025-29306Same product: Foxcms Foxcms
CVE-2025-50002Shared CWE-434
CVE-2015-10135Shared CWE-434
CVE-2025-69312Shared CWE-434
CVE-2015-10144Shared CWE-434
CVE-2025-7852Shared CWE-434

Affected Assets

foxcms
foxcms
1.2.5

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly remediates the arbitrary file upload flaw in FoxCMS LocalTemplate.php to prevent attackers from uploading crafted Zip files for code execution.

SI-10 Information Input Validation good match
prevent

Validates uploaded files at the application layer to ensure only safe types and contents are processed, blocking unrestricted uploads of dangerous Zip files.

SI-3 Malicious Code Protection partial match
preventdetect

Deploys malicious code protection mechanisms to scan and eradicate crafted malicious Zip files during upload or prior to execution.

References