CVE-2025-48233: Affiliates Manager CSRF Vulnerability

CVE-2025-48233 Overview

CVE-2025-48233 is a Cross-Site Request Forgery (CSRF) vulnerability in the Affiliates Manager Google reCAPTCHA Integration WordPress plugin that can lead to Stored Cross-Site Scripting (XSS). This chained vulnerability allows attackers to leverage CSRF to inject malicious scripts that are persistently stored and executed in the context of other users' browsers when they access affected pages.

Critical Impact

Attackers can chain CSRF with Stored XSS to execute arbitrary JavaScript in victims' browsers, potentially leading to session hijacking, credential theft, or administrative account compromise.

Affected Products

• Affiliates Manager Google reCAPTCHA Integration plugin versions through 1.0.6
• WordPress installations using the vulnerable plugin versions

Discovery Timeline

• 2025-05-19 - CVE CVE-2025-48233 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-48233

Vulnerability Analysis

This vulnerability combines two distinct attack vectors into a chained exploitation scenario. The CSRF vulnerability stems from missing or improper validation of anti-CSRF tokens in form submissions within the Affiliates Manager Google reCAPTCHA Integration plugin. When combined with insufficient input sanitization, attackers can forge requests that inject malicious JavaScript payloads that are stored in the WordPress database.

The stored nature of the XSS component means that the malicious script persists across sessions and will execute whenever any user, including administrators, views the page containing the injected payload. This creates a significant risk for privilege escalation and persistent compromise of WordPress installations.

Root Cause

The root cause is classified as CWE-352 (Cross-Site Request Forgery). The plugin fails to implement proper CSRF protection mechanisms, such as nonce verification, on administrative actions that modify plugin settings or stored data. Additionally, the application does not adequately sanitize user-controlled input before storing it in the database, allowing malicious scripts to be persisted and subsequently rendered without proper encoding.

Attack Vector

An attacker crafts a malicious web page or sends a specially crafted link to an authenticated WordPress administrator. When the victim visits the attacker-controlled page while logged into WordPress, their browser automatically submits a forged request to the vulnerable plugin endpoint. The request includes a malicious JavaScript payload that is stored in the plugin's settings or data storage. Subsequently, when any user accesses pages where this data is rendered, the stored XSS payload executes in their browser context.

The attack requires user interaction—specifically, an authenticated administrator must visit an attacker-controlled page while logged into the WordPress site. However, once the payload is stored, it executes automatically for all users viewing the affected content.

Detection Methods for CVE-2025-48233

Indicators of Compromise

• Unexpected JavaScript code or HTML script tags stored in plugin settings or database entries related to the Affiliates Manager Google reCAPTCHA Integration plugin
• Unusual administrative actions or settings changes that administrators do not recall making
• Browser console errors or unexpected script execution when viewing plugin configuration pages

Detection Strategies

• Monitor WordPress database tables associated with the Affiliates Manager Google reCAPTCHA Integration plugin for suspicious script tags or JavaScript code
• Implement Content Security Policy (CSP) headers to detect and block inline script execution attempts
• Review WordPress audit logs for unauthorized settings modifications to the affected plugin

Monitoring Recommendations

• Deploy Web Application Firewall (WAF) rules to detect and block CSRF attack patterns targeting WordPress plugins
• Enable WordPress security plugins that provide real-time monitoring of administrative actions and settings changes
• Configure alerts for database modifications to plugin-related tables outside of normal administrative workflows

How to Mitigate CVE-2025-48233

Immediate Actions Required

• Disable or remove the Affiliates Manager Google reCAPTCHA Integration plugin until a patched version is available
• Review plugin settings and database entries for any injected malicious scripts and remove them
• Reset administrative user sessions and credentials if compromise is suspected
• Implement additional CSRF protection at the web server or WAF level

Patch Information

As of the last update, versions through 1.0.6 remain vulnerable. Administrators should monitor the Patchstack Vulnerability Report for updates on patched versions. Consider contacting the plugin developer (affmngr) for patch availability or timeline information.

Workarounds

• Restrict administrative access to trusted IP addresses using WordPress security plugins or server-level configuration
• Implement additional nonce verification at the application layer if custom code modifications are feasible
• Use browser extensions or security tools that warn about CSRF attacks when visiting external sites while logged into WordPress
• Consider alternative reCAPTCHA integration solutions that have been audited for security vulnerabilities

# WordPress .htaccess configuration to restrict admin access by IP
# Add to .htaccess in wp-admin directory
<Files *.php>
Order Deny,Allow
Deny from all
Allow from 192.168.1.0/24
Allow from YOUR_TRUSTED_IP
</Files>