CVE-2025-28910 Overview
CVE-2025-28910 is a Cross-Site Request Forgery (CSRF) vulnerability affecting the WP Hide Admin Bar plugin for WordPress, developed by Ravinder Khurana. The flaw exists in all plugin versions up to and including 2.0. An attacker can craft a malicious web page that, when visited by an authenticated WordPress user, triggers unauthorized state-changing requests within the plugin. The vulnerability is categorized under [CWE-352] and requires user interaction to succeed.
Critical Impact
Successful exploitation allows an attacker to force an authenticated WordPress user to perform plugin configuration changes without their consent, resulting in limited integrity impact on the affected site.
Affected Products
- Ravinder Khurana WP Hide Admin Bar (WordPress plugin)
- All versions from n/a through 2.0
- WordPress installations with the plugin activated
Discovery Timeline
- 2025-03-11 - CVE-2025-28910 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-28910
Vulnerability Analysis
The WP Hide Admin Bar plugin fails to validate the origin of state-changing HTTP requests. The plugin does not verify a WordPress nonce token, or the token check is missing on sensitive request handlers. This omission allows an off-site attacker to submit forged requests through the browser session of an authenticated user.
CSRF vulnerabilities in WordPress plugins typically arise when developers implement admin-facing actions without calling wp_verify_nonce() or check_admin_referer(). Attackers exploit this gap by hosting a page containing a hidden form or JavaScript that auto-submits to the vulnerable endpoint. The victim's browser attaches valid session cookies, and WordPress processes the request as legitimate.
The scope of impact is limited to the plugin's configuration surface. The CVSS vector indicates low integrity impact with no confidentiality or availability consequences. However, changes to admin bar visibility settings can be leveraged as part of a larger attack chain against site administrators.
Root Cause
The root cause is missing or insufficient CSRF token validation on plugin request handlers. WordPress provides built-in nonce APIs, but the plugin code does not enforce them on the affected endpoints. This design flaw falls under [CWE-352]: Cross-Site Request Forgery.
Attack Vector
Exploitation requires the attacker to lure an authenticated WordPress administrator to a controlled URL. The victim must have an active session on the target WordPress site. Once triggered, the forged request executes plugin actions with the victim's privileges. No credentials or prior authentication are required on the attacker's side.
See the Patchstack WordPress Vulnerability advisory for additional technical context.
Detection Methods for CVE-2025-28910
Indicators of Compromise
- Unexpected changes to WP Hide Admin Bar plugin configuration in the WordPress database.
- HTTP POST or GET requests to plugin admin endpoints with Referer headers pointing to external domains.
- Administrator sessions producing plugin configuration changes without corresponding admin dashboard navigation events in access logs.
Detection Strategies
- Review WordPress access logs for requests targeting the plugin's admin endpoints that lack an internal Referer header.
- Monitor wp_options and plugin-specific database tables for unauthorized configuration writes.
- Deploy a Web Application Firewall (WAF) rule that inspects requests to /wp-admin/ for missing or invalid nonce parameters.
Monitoring Recommendations
- Enable WordPress audit logging plugins to record administrative actions with source IP and Referer metadata.
- Alert on plugin option changes occurring outside standard maintenance windows.
- Correlate authenticated admin sessions with unusual cross-origin request patterns.
How to Mitigate CVE-2025-28910
Immediate Actions Required
- Deactivate the WP Hide Admin Bar plugin until a patched version is released and verified.
- Instruct WordPress administrators to log out of admin sessions before browsing untrusted sites.
- Apply a WAF rule blocking cross-origin requests to /wp-admin/admin.php and plugin-specific endpoints.
Patch Information
At the time of publication, no fixed version is listed in the referenced advisory. The vulnerability affects all versions up to and including 2.0. Review the Patchstack advisory for updates on remediation availability.
Workarounds
- Remove the WP Hide Admin Bar plugin and use an alternative maintained plugin with proper nonce validation.
- Restrict /wp-admin/ access by IP allowlist at the web server or reverse proxy layer.
- Enforce SameSite=Strict or SameSite=Lax attributes on WordPress authentication cookies to reduce CSRF exposure.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
