CVE-2025-57915 Overview
CVE-2025-57915 is a Cross-Site Request Forgery (CSRF) vulnerability [CWE-352] affecting the César Martín TOCHAT.BE WordPress plugin (tochat-be). The flaw impacts all plugin versions up to and including 1.3.4. An attacker can craft a malicious web page that, when visited by an authenticated site user, triggers unintended state-changing actions on the target WordPress site. The vulnerability requires user interaction and is exploitable over the network without prior authentication on the attacker's side.
Critical Impact
Successful exploitation allows attackers to perform unauthorized actions on behalf of an authenticated user, potentially modifying plugin settings or triggering integrity-impacting operations within the WordPress environment.
Affected Products
- César Martín TOCHAT.BE WordPress plugin (tochat-be)
- All versions from initial release through 1.3.4
- WordPress installations with the affected plugin enabled
Discovery Timeline
- 2025-09-22 - CVE-2025-57915 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-57915
Vulnerability Analysis
The vulnerability stems from missing or improper CSRF protections in state-changing endpoints exposed by the TOCHAT.BE plugin. WordPress provides nonce-based verification via wp_nonce_field() and check_admin_referer() to prevent forged requests. When these mechanisms are absent or improperly validated, an attacker can construct requests that the victim's browser submits automatically using their active session cookies.
The CWE-352 classification confirms the root issue: the server accepts state-changing requests without verifying that the request originated from a legitimate, user-initiated action within the application. Exploitation results in limited integrity impact but does not directly disclose data or affect availability of the underlying service.
Root Cause
The plugin fails to validate anti-CSRF tokens on one or more request handlers that modify server-side state. Without nonce verification, the plugin cannot distinguish between requests originating from its own administrative interface and requests forged by an attacker-controlled site.
Attack Vector
The attack requires an authenticated WordPress user, typically an administrator, to visit an attacker-controlled page while their session with the target site remains active. The malicious page auto-submits a crafted request (via a hidden form or image tag) to the vulnerable plugin endpoint. The browser attaches session cookies, and the plugin executes the requested action under the victim's identity.
No verified public exploit code or proof-of-concept has been published. See the Patchstack WordPress Plugin Analysis for additional technical context.
Detection Methods for CVE-2025-57915
Indicators of Compromise
- Unexpected changes to TOCHAT.BE plugin configuration or settings within the WordPress admin area
- HTTP POST requests to plugin endpoints containing an external Referer header not matching the site's own domain
- Administrative actions recorded outside of expected admin activity windows for authenticated users
Detection Strategies
- Monitor web server access logs for state-changing requests to tochat-be plugin endpoints lacking valid nonce parameters
- Correlate WordPress audit logs against expected administrator activity to identify anomalous configuration changes
- Inspect HTTP Referer and Origin headers on requests targeting plugin admin routes for external origins
Monitoring Recommendations
- Enable WordPress security audit logging plugins to track configuration changes with user attribution and timestamps
- Alert on plugin setting modifications occurring immediately after administrators browse external sites
- Review web application firewall (WAF) telemetry for cross-origin requests targeting /wp-admin/ paths associated with the plugin
How to Mitigate CVE-2025-57915
Immediate Actions Required
- Identify all WordPress instances running the TOCHAT.BE plugin at version 1.3.4 or earlier
- Deactivate the plugin until a patched version is installed if administrative use is not business-critical
- Instruct administrators to log out of WordPress sessions when not actively performing management tasks
Patch Information
At the time of publication, no patched version has been documented in the enriched CVE data. Site operators should monitor the Patchstack WordPress Plugin Analysis advisory and the vendor's plugin repository for updates addressing CWE-352.
Workarounds
- Deploy a WordPress-aware web application firewall rule that rejects cross-origin requests to plugin admin endpoints
- Enforce SameSite=Strict or SameSite=Lax attributes on WordPress authentication cookies to block cross-site cookie transmission
- Restrict access to /wp-admin/ by source IP address where operationally feasible
- Require administrators to use isolated browser profiles when accessing the WordPress admin interface
# Example Apache configuration to enforce SameSite on WordPress cookies
Header edit Set-Cookie ^(wordpress_logged_in.*)$ "$1; SameSite=Strict; Secure"
Header edit Set-Cookie ^(wp-settings.*)$ "$1; SameSite=Strict; Secure"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
