Cyber Resilience

CVE-2025-26916

Critical

Published: 10 March 2025

Published
10 March 2025
Modified
23 April 2026
KEV Added
Patch
CVSS Score v3.1 9.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0153 81.7th percentile
Risk Priority 19 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-26916 is a critical-severity PHP Remote File Inclusion (CWE-98) vulnerability. Its CVSS base score is 9.0 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 18.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

The vulnerability is a PHP Remote File Inclusion issue (CWE-98) stemming from improper control of filenames in include/require statements. It affects the Pixflow Massive Dynamic WordPress theme for all versions through 8.2.

Unauthenticated remote attackers can exploit the flaw over the network, though the attack requires high complexity. Successful exploitation grants them the ability to include arbitrary files, resulting in full compromise of confidentiality, integrity, and availability with changed scope that can impact other components beyond the vulnerable theme.

The primary advisory reference from Patchstack describes the issue as an unauthenticated local file inclusion vulnerability in the same theme version range and points to associated database records for further details.

EPSS scores for the CVE rose from a low baseline to a peak of 0.0294, indicating emerging exploitation interest after disclosure.

EU & UK References

Vulnerability details

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Pixflow Massive Dynamic massive-dynamic.This issue affects Massive Dynamic: from n/a through <= 8.2.

CWE(s)

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.
Why these techniques?

This is an unauthenticated remote/local file inclusion vulnerability in a public-facing WordPress theme that enables arbitrary code execution on the server.

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

CVEs Like This One

CVE-2026-28087Shared CWE-98
CVE-2025-23952Shared CWE-98
CVE-2026-32505Shared CWE-98
CVE-2025-48149Shared CWE-98
CVE-2025-60058Shared CWE-98
CVE-2025-49994Shared CWE-98
CVE-2026-24531Shared CWE-98
CVE-2025-67527Shared CWE-98
CVE-2025-69396Shared CWE-98
CVE-2025-62067Shared CWE-98

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly mitigates the PHP Remote File Inclusion vulnerability by requiring timely patching and remediation of the flaw in the Massive Dynamic WordPress theme.

prevent

Requires validation of user-supplied filenames in PHP include/require statements to block malicious remote file paths.

prevent

Ensures secure baseline configuration of PHP settings, such as disabling allow_url_include, to prevent remote file inclusion exploits.

References