CVE-2025-27315 Overview
CVE-2025-27315 is a Cross-Site Request Forgery (CSRF) vulnerability affecting the wptom All-In-One Cufon plugin for WordPress. The flaw is present in all plugin versions up to and including 1.3.0. An attacker can trick an authenticated user into submitting a forged request that performs unintended actions within the plugin. The issue is classified under CWE-352 (Cross-Site Request Forgery) and requires user interaction to succeed.
Critical Impact
Successful exploitation allows attackers to alter plugin state or settings on behalf of an authenticated WordPress user without their consent.
Affected Products
- wptom All-In-One Cufon plugin for WordPress
- All versions from n/a through <= 1.3.0
- WordPress sites with the plugin installed and active
Discovery Timeline
- 2025-02-24 - CVE-2025-27315 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-27315
Vulnerability Analysis
The vulnerability stems from missing or improper anti-CSRF token validation in the All-In-One Cufon plugin. State-changing requests handled by the plugin do not verify that the request originated from an intentional user action. This allows a remote attacker to craft a malicious page or link that triggers privileged actions when visited by an authenticated site user. The Exploit Prediction Scoring System (EPSS) score is 0.158%, indicating a low observed exploitation likelihood at this time.
Root Cause
The plugin fails to implement WordPress nonce verification (wp_verify_nonce() or check_admin_referer()) on sensitive request handlers. Without a valid, per-session token bound to the requested action, the plugin cannot distinguish legitimate submissions from forged ones. This is a standard CWE-352 implementation weakness in WordPress plugin development.
Attack Vector
The attack requires an authenticated WordPress user, typically an administrator, to visit an attacker-controlled page or click a crafted link while logged in. The browser automatically includes the user's session cookies with the forged request. The plugin processes the request as legitimate because no CSRF token check is performed. The scope is unchanged and the confidentiality impact is none, but integrity of plugin data may be modified.
See the Patchstack Vulnerability Report for additional technical context.
Detection Methods for CVE-2025-27315
Indicators of Compromise
- Unexpected changes to All-In-One Cufon plugin settings within the WordPress admin interface
- HTTP POST requests to plugin endpoints containing external Referer headers or missing referrers
- Admin session activity originating from unusual IP addresses or user agents
Detection Strategies
- Review web server access logs for requests to plugin URLs that lack an on-site Referer header
- Monitor WordPress audit logs for configuration changes not initiated through the admin UI
- Compare current plugin configuration against a known-good baseline to identify unauthorized modifications
Monitoring Recommendations
- Enable a WordPress activity logging plugin to record administrative actions and setting changes
- Alert on plugin option updates that occur outside of expected maintenance windows
- Track outbound clicks and email links delivered to administrator accounts for potential CSRF lures
How to Mitigate CVE-2025-27315
Immediate Actions Required
- Deactivate the All-In-One Cufon plugin if a patched version is not yet available
- Require administrators to log out of WordPress sessions when not actively performing site management
- Restrict administrative access to trusted networks using IP allowlisting at the web server or WAF
Patch Information
At the time of publication, no fixed version beyond 1.3.0 is referenced in the enriched data. Site operators should consult the Patchstack Vulnerability Report for updated remediation guidance and vendor patch status.
Workarounds
- Remove the plugin entirely if it is no longer required for site functionality
- Deploy a Web Application Firewall (WAF) rule to block cross-origin POST requests targeting the plugin's endpoints
- Enforce SameSite cookie attributes on WordPress session cookies to reduce cross-site request risk
- Educate administrators to avoid clicking untrusted links while authenticated to the WordPress admin panel
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
