CVE-2025-23483: Universal Analytics Injector CSRF Vuln

CVE-2025-23483 Overview

CVE-2025-23483 is a Cross-Site Request Forgery (CSRF) vulnerability in the Universal Analytics Injector WordPress plugin developed by hoyce. This vulnerability allows attackers to perform CSRF attacks that can lead to Stored Cross-Site Scripting (XSS), enabling malicious actors to inject persistent scripts into the vulnerable WordPress site. The vulnerability affects all versions of Universal Analytics Injector through version 1.0.3.

Critical Impact

Attackers can leverage CSRF to inject persistent malicious scripts into WordPress sites using the Universal Analytics Injector plugin, potentially compromising site visitors and administrative users.

Affected Products

• Universal Analytics Injector WordPress Plugin version 1.0.3 and earlier
• WordPress installations with Universal Analytics Injector plugin enabled
• Any site visitors or administrators accessing compromised pages

Discovery Timeline

• 2025-01-16 - CVE CVE-2025-23483 published to NVD
• 2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-23483

Vulnerability Analysis

This vulnerability represents a chained attack vector combining Cross-Site Request Forgery (CSRF) with Stored Cross-Site Scripting (XSS). The Universal Analytics Injector plugin fails to implement proper CSRF token validation on forms that handle user input, and simultaneously lacks adequate output sanitization. This dual failure allows an attacker to craft malicious requests that, when executed by an authenticated administrator, inject persistent JavaScript code into the plugin's configuration or output areas.

The attack requires user interaction—specifically, an authenticated WordPress administrator must be tricked into visiting a malicious page or clicking a crafted link while logged into their WordPress dashboard. Once the CSRF attack succeeds, the injected XSS payload persists in the database and executes whenever users view the affected pages.

Root Cause

The root cause stems from CWE-352 (Cross-Site Request Forgery). The Universal Analytics Injector plugin does not properly validate the origin of requests modifying plugin settings. Without CSRF protection mechanisms such as nonce verification, the plugin accepts and processes requests regardless of their source. Combined with insufficient input sanitization on analytics-related fields, this allows attackers to store malicious payloads that execute in the context of other users' browsers.

Attack Vector

The attack is network-based and requires minimal complexity to execute. An attacker creates a malicious webpage containing a hidden form or JavaScript that automatically submits a request to the vulnerable WordPress plugin's settings endpoint. When an authenticated WordPress administrator visits this malicious page, their browser automatically includes session cookies, causing the request to be processed as legitimate.

The attacker's payload typically contains JavaScript code that gets stored in the plugin's configuration. This stored payload then executes whenever any user—including administrators, editors, or site visitors—accesses pages where the Universal Analytics Injector outputs its content, effectively creating a persistent XSS condition.

The vulnerability can be exploited through crafted HTML forms or JavaScript-based requests that target the plugin's administrative endpoints without proper authorization checks. Attackers may distribute malicious links through phishing emails, social media, or compromised websites to trick administrators into triggering the CSRF attack.

Detection Methods for CVE-2025-23483

Indicators of Compromise

• Unexpected JavaScript code or <script> tags present in Universal Analytics Injector plugin settings
• Suspicious analytics tracking IDs or custom code blocks that were not configured by administrators
• Browser console errors or unexpected network requests to unknown external domains
• User reports of unusual behavior, pop-ups, or redirects when visiting the WordPress site

Detection Strategies

• Review Universal Analytics Injector plugin configuration for any unauthorized or suspicious script injections
• Monitor WordPress database tables associated with the plugin for unexpected content changes
• Implement web application firewall (WAF) rules to detect and block CSRF attack patterns
• Enable WordPress security plugins that log administrative actions and configuration changes

Monitoring Recommendations

• Configure alerts for modifications to plugin settings, especially those involving script or analytics code
• Monitor HTTP server logs for suspicious POST requests to the Universal Analytics Injector settings pages from external referrers
• Implement Content Security Policy (CSP) headers to mitigate the impact of successful XSS injections
• Regularly audit installed WordPress plugins and their configurations for unauthorized modifications

How to Mitigate CVE-2025-23483

Immediate Actions Required

• Disable or deactivate the Universal Analytics Injector plugin immediately if running version 1.0.3 or earlier
• Review and sanitize any existing plugin configuration to remove potentially malicious injected scripts
• Audit WordPress user accounts for any unauthorized access or suspicious activity
• Consider implementing additional WordPress hardening measures while awaiting a patched version

Patch Information

As of the current data, no official patch has been released that addresses this vulnerability. The issue affects Universal Analytics Injector versions through 1.0.3. Users should monitor the Patchstack Vulnerability Report for updates on a security fix. Consider contacting the plugin developer (hoyce) directly for information on remediation timelines.

Workarounds

• Remove the Universal Analytics Injector plugin entirely and implement Google Analytics tracking through alternative, actively maintained plugins
• Manually add analytics code to theme files with proper escaping if plugin removal is not feasible
• Implement WordPress security plugins that provide CSRF protection and XSS filtering at the application level
• Use a Web Application Firewall (WAF) to filter potentially malicious requests targeting WordPress plugin endpoints

# WordPress CLI command to deactivate the vulnerable plugin
wp plugin deactivate universal-analytics-injector

# Verify the plugin is disabled
wp plugin list --status=inactive | grep universal-analytics-injector

# Optional: Remove the plugin entirely
wp plugin uninstall universal-analytics-injector