CVE-2026-25322: PublishPress Revisions CSRF Vulnerability

CVE-2026-25322 Overview

A Cross-Site Request Forgery (CSRF) vulnerability has been identified in the PublishPress Revisions plugin for WordPress. This security flaw allows attackers to forge malicious requests that exploit the trust a web application places in an authenticated user's browser. When exploited, an attacker can trick authenticated administrators or editors into unknowingly executing unwanted actions on the WordPress site where the vulnerable plugin is installed.

Critical Impact

Attackers can leverage this CSRF vulnerability to perform unauthorized actions on WordPress sites using PublishPress Revisions, potentially leading to content manipulation, privilege escalation, or administrative actions being executed without proper authorization.

Affected Products

• PublishPress Revisions (revisionary) plugin for WordPress versions through 3.7.22
• WordPress installations running the affected plugin versions

Discovery Timeline

• 2026-02-19 - CVE CVE-2026-25322 published to NVD
• 2026-02-19 - Last updated in NVD database

Technical Details for CVE-2026-25322

Vulnerability Analysis

This vulnerability falls under CWE-352 (Cross-Site Request Forgery), a class of web application security flaws where malicious actors can induce users to perform actions they did not intend. The PublishPress Revisions plugin, which provides revision workflow and scheduling capabilities for WordPress, fails to properly validate the origin of requests for certain sensitive operations.

The core issue stems from insufficient anti-CSRF token validation in the plugin's request handling mechanisms. When authenticated users with appropriate privileges visit a malicious webpage or click a crafted link, the attacker's page can submit requests to the WordPress site that appear to originate from the legitimate user's session.

Root Cause

The vulnerability exists due to missing or improper implementation of nonce verification in the PublishPress Revisions plugin. WordPress provides built-in CSRF protection through nonces (number-used-once tokens), but the affected versions of this plugin do not adequately validate these tokens before processing state-changing requests. This allows attackers to craft malicious requests that bypass the intended security controls.

Attack Vector

An attacker exploiting this CSRF vulnerability would typically:

1. Create a malicious webpage containing a hidden form or JavaScript that automatically submits requests to the target WordPress site
2. Trick an authenticated administrator or editor into visiting the malicious page (via phishing, social engineering, or embedding in compromised sites)
3. The victim's browser automatically includes their WordPress session cookies with the forged request
4. The WordPress site processes the request as if it came from the legitimate user, executing the attacker's desired actions

The attack requires no authentication from the attacker's perspective—they simply need the victim to be logged into their WordPress dashboard with appropriate permissions for the targeted functionality.

Detection Methods for CVE-2026-25322

Indicators of Compromise

• Unexpected modifications to post revisions or publishing schedules without corresponding user activity
• Unusual HTTP POST requests to PublishPress Revisions plugin endpoints from external referrers
• Administrative actions in WordPress audit logs that users deny performing
• Sudden changes to revision workflow settings or permissions

Detection Strategies

• Monitor WordPress audit logs for plugin-related administrative actions that lack corresponding user intent
• Implement Content Security Policy (CSP) headers to detect and prevent cross-origin form submissions
• Review web server access logs for requests to plugin endpoints with unusual or missing referrer headers
• Deploy web application firewall (WAF) rules to detect CSRF attack patterns targeting WordPress plugins

Monitoring Recommendations

• Enable comprehensive WordPress activity logging using security plugins
• Configure alerts for bulk or unusual modifications to content revisions
• Monitor for external domains appearing in referrer headers when administrative actions are performed
• Regularly review user activity logs for actions performed during suspicious timeframes

How to Mitigate CVE-2026-25322

Immediate Actions Required

• Update PublishPress Revisions plugin to the latest patched version immediately
• Review recent plugin activity logs for any unauthorized changes
• Implement additional CSRF protections at the web server or WAF level
• Educate users about phishing risks and avoiding suspicious links while logged into WordPress

Patch Information

Users should update the PublishPress Revisions plugin to a version newer than 3.7.22 where the CSRF vulnerability has been addressed. Check the Patchstack Vulnerability Report for the latest security advisory and patching guidance.

To update the plugin:

1. Navigate to Plugins > Installed Plugins in WordPress admin
2. Locate PublishPress Revisions and check for available updates
3. Click Update Now if a newer version is available
4. Verify the updated version is higher than 3.7.22

Workarounds

• Implement strict Content Security Policy (CSP) headers with form-action 'self' directive to prevent cross-origin form submissions
• Use a Web Application Firewall (WAF) with CSRF protection rules enabled
• Limit plugin usage to only essential users with the minimum required permissions
• Consider temporarily disabling the plugin if a patch is not immediately available and the functionality is non-critical

# Add CSRF protection headers to Apache configuration
# Add to .htaccess or Apache virtual host configuration
Header set X-Content-Type-Options "nosniff"
Header set X-Frame-Options "SAMEORIGIN"
Header set Content-Security-Policy "form-action 'self';"
Header set Referrer-Policy "strict-origin-when-cross-origin"