Cyber Resilience

CVE-2026-25366

CriticalRCE

Published: 25 March 2026

Published
25 March 2026
Modified
24 April 2026
KEV Added
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Patch
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CVSS Score v3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0031 22.7th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-25366 is a critical-severity Code Injection (CWE-94) vulnerability. Its CVSS base score is 9.9 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 22.7th percentile by exploit likelihood (below the median); 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

CVE-2026-25366 is an Improper Control of Generation of Code ('Code Injection') vulnerability, classified under CWE-94, in the Themeisle Woody ad snippets insert-php WordPress plugin. This issue affects versions from n/a through 2.7.1 and was published on 2026-03-25.

The vulnerability carries a CVSS v3.1 base score of 9.9 (Critical), with vector AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. A low-privileged remote attacker (PR:L) can exploit it over the network with low complexity and no user interaction, achieving a scope change that results in high impacts to confidentiality, integrity, and availability, enabling remote code execution.

The Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/insert-php/vulnerability/wordpress-woody-ad-snippets-plugin-2-7-1-remote-code-execution-rce-vulnerability?_s_id=cve details this remote code execution vulnerability in Woody ad snippets plugin version 2.7.1; practitioners should review it for mitigation guidance.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

Improper Control of Generation of Code ('Code Injection') vulnerability in Themeisle Woody ad snippets insert-php allows Code Injection.This issue affects Woody ad snippets: from n/a through <= 2.7.1.

CWE(s)
CWE-94

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 →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
Why these techniques?

CVE describes unauthenticated RCE via code injection in public-facing WordPress plugin (T1190); achieved RCE directly permits arbitrary command execution through the server's scripting interpreter (T1059.004 Unix Shell); low-privileged access escalates to full system impact via scope change (T1068).

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

CVEs Like This One

CVE-2025-67036Shared CWE-94
CVE-2025-67034Shared CWE-94
CVE-2025-67037Shared CWE-94
CVE-2026-32613Shared CWE-94
CVE-2026-28425Shared CWE-94
CVE-2024-56373Shared CWE-94
CVE-2026-26830Shared CWE-94
CVE-2024-54804Shared CWE-94
CVE-2025-67038Shared CWE-94
CVE-2024-54806Shared CWE-94

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

SI-10 directly prevents code injection by requiring validation and sanitization of inputs to the PHP snippet insertion feature in the Woody ad snippets plugin.

SI-2 Flaw Remediation good match
prevent

SI-2 mandates timely patching and remediation of the known code injection flaw in Woody ad snippets versions through 2.7.1.

CM-7 Least Functionality partial match
prevent

CM-7 reduces the attack surface by disabling unnecessary functionality such as the vulnerable PHP code insertion capability in the plugin.

References