CVE-2025-62120: 
WordPress vulnerability analysis and mitigation

CVE-2025-62120 is a Cross-Site Request Forgery (CSRF) vulnerability in the WordPress plugin OpenHook, developed by Rick Beckman. It affects all versions of the plugin up to and including 4.3.1. The vulnerability was published on December 31, 2025, with the assigner credited as Patchstack. It carries a CVSS v3.1 base score of 5.4 (Medium) (Feedly, Patchstack).

The vulnerability is classified under CWE-352 (Cross-Site Request Forgery), meaning the plugin fails to properly validate the origin of state-changing HTTP requests. An unauthenticated remote attacker can craft a malicious web page or link that, when visited by an authenticated WordPress administrator, triggers unauthorized actions within the OpenHook plugin without the victim's knowledge. Exploitation requires user interaction — specifically, a logged-in user must be tricked into visiting an attacker-controlled page. No authentication or elevated privileges are required on the attacker's side (Feedly, Patchstack).

Successful exploitation of this CSRF vulnerability can result in limited integrity and availability impacts on the affected WordPress site. An attacker could manipulate plugin settings or trigger unintended administrative actions on behalf of an authenticated user, potentially disrupting site functionality or altering content. Confidentiality is not directly impacted, as the CVSS score reflects no confidentiality loss (Feedly).

No public proof-of-concept exploit code or evidence of in-the-wild exploitation has been reported for CVE-2025-62120. The EPSS score is approximately 0.015% (0.000150), indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. No threat actor attribution has been identified (Feedly).

1. Reconnaissance: Identify WordPress sites running the OpenHook plugin (version ≤ 4.3.1) via public search tools such as WPScan or by inspecting plugin directories on target sites.
2. Identify target action: Determine which plugin administrative endpoints (e.g., settings save or hook configuration forms) lack CSRF token validation.
3. Craft malicious request: Create an HTML page containing a hidden form or JavaScript that automatically submits a forged HTTP POST request to the vulnerable OpenHook admin endpoint with attacker-chosen parameters.
4. Deliver to victim: Trick an authenticated WordPress administrator into visiting the attacker-controlled page via phishing email, social engineering, or a compromised third-party site.
5. Achieve objective: The victim's browser automatically submits the forged request with their session credentials, causing the plugin to execute the unauthorized action (e.g., modifying hook settings or disrupting plugin functionality) (Feedly).

• Logs: WordPress access logs showing unexpected POST requests to OpenHook plugin admin pages (e.g., wp-admin/options-general.php?page=thesis-openhook or similar) from unusual referrer URLs or external domains.
• Application: Unexpected changes to OpenHook plugin settings or hook configurations without corresponding administrator activity.
• Network: HTTP requests to WordPress admin endpoints originating from non-administrative IP addresses or with suspicious Referer headers pointing to external sites.

Users should update the OpenHook plugin to a version beyond 4.3.1 if a patched release is available from the plugin author Rick Beckman or the WordPress plugin repository. As a workaround, administrators can deactivate or remove the OpenHook plugin until a patch is confirmed. Additionally, implementing a Web Application Firewall (WAF) with CSRF protection rules can help mitigate exploitation risk in the interim (Patchstack).