CVE-2025-30578 Overview
CVE-2025-30578 is a Cross-Site Request Forgery (CSRF) vulnerability in the AdSense Privacy Policy WordPress plugin by hotvanrod that leads to Stored Cross-Site Scripting (XSS). This chained vulnerability allows attackers to trick authenticated administrators into unknowingly submitting malicious requests, which can then inject persistent JavaScript code into the WordPress site.
Critical Impact
Attackers can leverage this CSRF-to-Stored-XSS chain to execute arbitrary JavaScript in the context of other users' browsers, potentially leading to session hijacking, administrative account takeover, or malicious content injection on affected WordPress sites.
Affected Products
- AdSense Privacy Policy WordPress plugin version 1.1.1 and earlier
- WordPress sites running vulnerable versions of the adsense-privacy-policy plugin
Discovery Timeline
- 2025-03-24 - CVE CVE-2025-30578 published to NVD
- 2026-04-15 - Last updated in NVD database
Technical Details for CVE-2025-30578
Vulnerability Analysis
This vulnerability represents a dangerous attack chain combining two distinct web application security flaws. The AdSense Privacy Policy plugin fails to implement proper CSRF token validation on its administrative forms, allowing attackers to forge requests that appear to originate from authenticated administrators. When combined with insufficient input sanitization, attackers can inject malicious JavaScript that persists in the database and executes whenever the affected content is rendered.
The Stored XSS component makes this vulnerability particularly severe, as the malicious payload remains active until manually removed, potentially affecting multiple users over an extended period.
Root Cause
The root cause is twofold: first, the plugin lacks proper nonce verification (WordPress's CSRF protection mechanism) on form submissions. Second, the plugin fails to properly sanitize and escape user-supplied input before storing it in the database and rendering it on the page. This combination of missing security controls creates an exploitable attack surface.
Attack Vector
The attack requires social engineering to trick an authenticated WordPress administrator into clicking a malicious link or visiting an attacker-controlled page. The attacker crafts a forged request containing XSS payload that is submitted to the vulnerable plugin endpoint. Since no CSRF token validation occurs, the request is processed as legitimate, and the malicious JavaScript is stored in the WordPress database.
Once stored, the XSS payload executes in the browser of any user who views the affected page, running with the privileges of that user's session. For administrators, this could lead to complete site compromise.
Detection Methods for CVE-2025-30578
Indicators of Compromise
- Unexpected or unauthorized changes to AdSense Privacy Policy plugin settings
- Suspicious JavaScript code in plugin configuration fields or database entries
- Web server logs showing unusual POST requests to plugin administrative endpoints from external referrers
- Browser console errors or unexpected script execution on pages where the plugin content is rendered
Detection Strategies
- Review WordPress database for stored XSS payloads in plugin-related tables, particularly looking for <script> tags or JavaScript event handlers
- Monitor web application firewall (WAF) logs for requests containing XSS patterns targeting the adsense-privacy-policy plugin
- Implement Content Security Policy (CSP) headers and monitor for violations that may indicate script injection attempts
- Audit plugin configuration pages for any unauthorized modifications
Monitoring Recommendations
- Enable WordPress audit logging to track all plugin configuration changes with user attribution
- Configure real-time alerting for modifications to plugin settings tables in the WordPress database
- Deploy browser-based XSS detection tools to identify malicious script execution
- Regularly scan WordPress installations for known vulnerable plugin versions
How to Mitigate CVE-2025-30578
Immediate Actions Required
- Deactivate and remove the AdSense Privacy Policy plugin (adsense-privacy-policy) if currently installed
- Review plugin settings and database tables for any signs of injected malicious content
- Audit WordPress administrative accounts for unauthorized access or session anomalies
- Consider implementing a Web Application Firewall (WAF) with CSRF and XSS protection rules
Patch Information
As of the last available information, versions through 1.1.1 remain vulnerable. Site administrators should check the Patchstack WordPress Plugin Vulnerability database for the latest patch status and any updated versions that address this vulnerability. If no patch is available, consider using an alternative plugin that provides similar functionality with proper security controls.
Workarounds
- Remove or deactivate the vulnerable plugin until a security patch is released
- Implement WordPress nonce verification at the application level if modifying the plugin code is feasible
- Use a security plugin that provides virtual patching for known WordPress vulnerabilities
- Restrict administrative access to trusted IP addresses to reduce the CSRF attack surface
- Train administrators to avoid clicking untrusted links while logged into WordPress
# WordPress CLI commands to check and manage the vulnerable plugin
# Check if the vulnerable plugin is installed
wp plugin list --name=adsense-privacy-policy --status=active
# Deactivate the vulnerable plugin
wp plugin deactivate adsense-privacy-policy
# Optionally remove the plugin entirely
wp plugin delete adsense-privacy-policy
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
