CVE-2026-25447
Published: 25 March 2026
Summary
CVE-2026-25447 is a critical-severity Code Injection (CWE-94) vulnerability. Its CVSS base score is 9.1 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 23.0th 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-2026-25447 is an Improper Control of Generation of Code ('Code Injection') vulnerability, classified under CWE-94, in the Widget Wrangler WordPress plugin by Jonathan Daggerhart. This issue affects the widget-wrangler plugin from n/a through version 2.3.9 inclusive. The vulnerability was published on 2026-03-25 and carries a CVSS v3.1 base score of 9.1 (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H).
Exploitation requires high privileges (PR:H), such as those held by an authenticated administrator, but can be conducted remotely over the network (AV:N) with low attack complexity (AC:L) and no user interaction (UI:N). Successful exploitation leads to remote code execution, enabling full compromise of confidentiality, integrity, and availability (C:H/I:H/A:H) across the affected system's scope (S:C).
The Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/widget-wrangler/vulnerability/wordpress-widget-wrangler-plugin-2-3-9-remote-code-execution-rce-vulnerability?_s_id=cve documents this as a remote code execution vulnerability in the WordPress Widget Wrangler plugin version 2.3.9 and provides details on the issue.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-15728
Vulnerability details
Improper Control of Generation of Code ('Code Injection') vulnerability in Jonathan Daggerhart Widget Wrangler widget-wrangler allows Code Injection.This issue affects Widget Wrangler: from n/a through <= 2.3.9.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Code injection (CWE-94) RCE in public-facing WordPress plugin directly enables exploitation of internet-facing apps (T1190) to achieve arbitrary command execution via Unix/PHP shell (T1059.004) or web shell deployment (T1100).
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Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly prevents code injection exploitation in Widget Wrangler by enforcing validation and sanitization of all inputs used in dynamic code generation.
Mitigates CVE-2026-25447 by requiring timely identification, prioritization, and remediation of flaws such as this plugin vulnerability through patching to version >2.3.9.
Reduces risk of PR:H exploitation in Widget Wrangler by enforcing least privilege, ensuring users lack unnecessary administrative access to vulnerable widget functions.