CVE-2025-28868: ZipList Recipe Plugin CSRF Vulnerability

CVE-2025-28868 Overview

A Cross-Site Request Forgery (CSRF) vulnerability has been identified in the ZipList Recipe plugin for WordPress (ziplist-recipe-plugin). This vulnerability allows attackers to trick authenticated users into executing unintended actions on the WordPress site by crafting malicious requests that leverage the user's active session.

The vulnerability exists due to missing or improper CSRF token validation in the plugin, allowing attackers to forge requests that appear legitimate to the server. When a user with active WordPress credentials visits a malicious page, the attacker can execute administrative actions on behalf of that user without their knowledge or consent.

Critical Impact

Authenticated users visiting malicious websites could unknowingly perform privileged actions on their WordPress site, potentially leading to unauthorized configuration changes, data manipulation, or complete site compromise.

Affected Products

• ZipList Recipe plugin for WordPress (versions up to and including 3.1)
• WordPress installations running vulnerable versions of ziplist-recipe-plugin
• Condenast ZipList Recipe (condenast:ziplist_recipe)

Discovery Timeline

• 2025-03-11 - CVE-2025-28868 published to NVD
• 2026-04-01 - Last updated in NVD database

Technical Details for CVE-2025-28868

Vulnerability Analysis

This Cross-Site Request Forgery vulnerability in the ZipList Recipe plugin stems from inadequate request origin validation. CSRF attacks exploit the trust that web applications place in authenticated user sessions. When a WordPress administrator or editor is logged in and visits a malicious website, the attacker can leverage the victim's browser to send forged HTTP requests to the WordPress site.

The attack requires no privileges on the target system but does require user interaction—the victim must be authenticated to WordPress and must visit a page controlled by the attacker. Successful exploitation can result in unauthorized modifications to recipe content, plugin settings, or other WordPress configurations accessible through the vulnerable plugin's functionality.

The impact is significant as it can affect confidentiality, integrity, and availability of the WordPress installation. Attackers could potentially modify site content, change plugin configurations, or trigger other unintended actions that the authenticated user has permission to perform.

Root Cause

The root cause of this vulnerability is the absence of proper CSRF protection mechanisms in one or more sensitive operations within the ZipList Recipe plugin. WordPress provides built-in CSRF protection through nonce tokens (wp_nonce_field() and wp_verify_nonce()), but the vulnerable plugin fails to implement these security controls adequately on state-changing requests.

Without proper nonce verification, the plugin cannot distinguish between legitimate requests initiated by the user and malicious requests forged by an attacker through a third-party website.

Attack Vector

The attack is network-based and follows a typical CSRF exploitation pattern:

1. The attacker identifies a vulnerable action in the ZipList Recipe plugin that lacks CSRF protection
2. The attacker crafts a malicious HTML page containing a hidden form or JavaScript that submits a forged request to the target WordPress site
3. The attacker lures an authenticated WordPress user to visit the malicious page through phishing, social engineering, or compromised websites
4. The victim's browser automatically sends the forged request along with their active session cookies
5. The WordPress site processes the request as if it came from the legitimate user, executing the malicious action

The vulnerability can be exploited remotely with minimal complexity, though it requires user interaction to succeed. For detailed technical analysis, refer to the Patchstack CSRF Vulnerability Report.

Detection Methods for CVE-2025-28868

Indicators of Compromise

• Unexpected changes to recipe content or plugin settings without administrator action
• Web server logs showing POST requests to plugin endpoints from external referrer URLs
• Unusual administrative activity timestamps that don't correlate with normal user behavior
• Browser history or proxy logs showing visits to suspicious external sites prior to unauthorized changes

Detection Strategies

• Monitor WordPress audit logs for administrative actions performed shortly after users visit external websites
• Implement Web Application Firewall (WAF) rules to detect and block requests with suspicious or missing referrer headers
• Review HTTP access logs for POST requests to /wp-admin/ or plugin endpoints with external Referer headers
• Deploy Content Security Policy (CSP) headers to prevent execution of unauthorized scripts

Monitoring Recommendations

• Enable comprehensive WordPress activity logging using security plugins to track all administrative actions
• Configure alerts for bulk or rapid changes to plugin settings or content
• Monitor for anomalous patterns in authenticated user sessions, particularly actions occurring immediately after referrer changes
• Implement real-time log analysis to correlate external site visits with subsequent administrative actions

How to Mitigate CVE-2025-28868

Immediate Actions Required

• Update the ZipList Recipe plugin to a patched version if available from the WordPress plugin repository
• Deactivate and remove the ziplist-recipe-plugin if no patch is available and the functionality is not critical
• Implement additional CSRF protections at the WAF or server level for WordPress administrative endpoints
• Educate WordPress administrators about the risks of visiting untrusted websites while logged into the admin panel

Patch Information

Check the WordPress plugin repository for updates to the ZipList Recipe plugin. As of the last NVD update on 2026-04-01, all versions through 3.1 are affected. Organizations should monitor for security updates from the plugin maintainers and apply patches immediately when available. Review the Patchstack security advisory for the latest remediation guidance.

Workarounds

• Use browser profiles or incognito windows exclusively for WordPress administration to isolate session cookies
• Log out of WordPress administrative sessions when not actively performing administrative tasks
• Implement strict SameSite cookie policies (SameSite=Strict) for WordPress session cookies
• Deploy a WAF with CSRF protection rules to validate request origins for administrative endpoints

# Apache .htaccess configuration to restrict referer for admin actions
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_METHOD} POST
RewriteCond %{REQUEST_URI} /wp-admin/
RewriteCond %{HTTP_REFERER} !^https?://(www\.)?yourdomain\.com [NC]
RewriteRule .* - [F,L]
</IfModule>