CVE-2026-0741: WordPress Download Counter XSS Vulnerability

CVE-2026-0741 Overview

The Electric Studio Download Counter plugin for WordPress contains a Stored Cross-Site Scripting (XSS) vulnerability in all versions up to and including 2.4. The vulnerability exists due to insufficient input sanitization and output escaping in the plugin settings. This allows authenticated attackers with Administrator-level access to inject arbitrary web scripts into pages that execute whenever a user accesses an affected page.

Critical Impact

Authenticated attackers with administrative privileges can inject persistent malicious scripts that execute in the browsers of all users visiting affected pages, potentially leading to session hijacking, data theft, or further compromise of the WordPress installation.

Affected Products

• Electric Studio Download Counter plugin for WordPress version 2.4 and earlier
• WordPress installations using vulnerable versions of this plugin

Discovery Timeline

• January 14, 2026 - CVE-2026-0741 published to NVD
• January 14, 2026 - Last updated in NVD database

Technical Details for CVE-2026-0741

Vulnerability Analysis

This Stored Cross-Site Scripting vulnerability (CWE-79) affects the Electric Studio Download Counter plugin's settings functionality. The vulnerability allows attackers with administrative access to inject malicious JavaScript code that persists in the database and executes when other users access pages containing the injected content.

The attack requires network access and elevated privileges (Administrator-level), but does not require user interaction once the malicious payload is stored. The scope of the vulnerability is changed, meaning the vulnerable component (the plugin settings) can affect components beyond its security scope (user browsers).

Root Cause

The root cause of this vulnerability is insufficient input sanitization and output escaping within the plugin settings interface. The plugin fails to properly sanitize user-supplied input when storing settings and does not adequately escape output when rendering this data on pages. Specifically, the vulnerable code is located in the electric-studio-download-counter.php file, as referenced in the WordPress Plugin Source Code at line 186 and line 202.

Attack Vector

The attack vector is network-based and requires the attacker to have authenticated Administrator-level access to the WordPress installation. The attacker exploits the vulnerability by navigating to the plugin's settings page and injecting malicious JavaScript code into vulnerable input fields. When the settings are saved, the malicious script is stored in the database. Subsequently, when any user (including other administrators or frontend visitors if the settings affect public pages) accesses a page that renders the compromised settings, the malicious script executes in their browser context.

The vulnerability mechanism involves storing unsanitized input through the plugin settings and later rendering that content without proper output escaping. For technical implementation details, refer to the Wordfence Vulnerability Report.

Detection Methods for CVE-2026-0741

Indicators of Compromise

• Unexpected JavaScript code present in Electric Studio Download Counter plugin settings
• Suspicious <script> tags or event handlers (e.g., onerror, onload) in plugin configuration values
• Browser security warnings or Content Security Policy violations when accessing plugin settings or pages displaying download counters
• Unusual network requests originating from pages containing the download counter functionality

Detection Strategies

• Review WordPress database entries related to the Electric Studio Download Counter plugin for suspicious JavaScript content
• Implement Web Application Firewall (WAF) rules to detect XSS patterns in requests to plugin settings pages
• Monitor WordPress admin activity logs for suspicious changes to plugin settings
• Use security scanning tools to identify stored XSS payloads in the WordPress database

Monitoring Recommendations

• Enable logging for all administrative actions in WordPress, particularly plugin settings changes
• Configure browser-based Content Security Policy headers to restrict inline script execution
• Implement file integrity monitoring on the plugin files to detect unauthorized modifications
• Set up alerts for unusual patterns in admin panel access to plugin settings pages

How to Mitigate CVE-2026-0741

Immediate Actions Required

• Audit current plugin settings for any suspicious or unexpected JavaScript code
• Review WordPress user accounts with Administrator access and verify their legitimacy
• Consider temporarily deactivating the Electric Studio Download Counter plugin until a patched version is available
• Implement Content Security Policy headers to mitigate the impact of potential XSS attacks

Patch Information

As of the published date, site administrators should check the WordPress plugin repository for an updated version of the Electric Studio Download Counter plugin that addresses this vulnerability. Monitor the WordPress Plugin Source Code repository for security updates. The Wordfence Vulnerability Report may also provide updated patch status and remediation guidance.

Workarounds

• Limit Administrator access to only trusted and necessary users to reduce the attack surface
• Implement a Web Application Firewall with XSS filtering rules to detect and block malicious input
• Add Content Security Policy headers to prevent inline script execution across your WordPress site
• Regularly audit plugin settings and database entries for unexpected content

# Add Content Security Policy header to wp-config.php or .htaccess
# Apache (.htaccess)
Header set Content-Security-Policy "script-src 'self'; object-src 'none';"

# Nginx (nginx.conf or site configuration)
add_header Content-Security-Policy "script-src 'self'; object-src 'none';" always;