CVE-2025-31384: Aviplugins Videos XSS Vulnerability

CVE-2025-31384 Overview

CVE-2025-31384 is a Reflected Cross-Site Scripting (XSS) vulnerability affecting the Aviplugins Videos plugin for WordPress. The vulnerability stems from improper neutralization of script-related HTML tags in web page output, classified under CWE-80 (Improper Neutralization of Script-Related HTML Tags in a Web Page). This flaw allows attackers to inject malicious scripts that execute in the context of a victim's browser session when they interact with a specially crafted URL.

Critical Impact

This reflected XSS vulnerability can enable attackers to steal session cookies, hijack user accounts, deface websites, and redirect users to malicious sites. WordPress administrators and users visiting affected pages are at risk of credential theft and unauthorized actions.

Affected Products

• Aviplugins Videos plugin versions from n/a through 1.0.5
• WordPress installations running vulnerable versions of the Videos plugin
• Any websites utilizing the Aviplugins Videos functionality

Discovery Timeline

• 2025-04-04 - CVE-2025-31384 published to NVD
• 2026-04-28 - Last updated in NVD database

Technical Details for CVE-2025-31384

Vulnerability Analysis

This vulnerability is a classic reflected XSS issue where user-supplied input containing script-related HTML tags is not properly sanitized before being rendered in the web page output. The Aviplugins Videos plugin fails to implement adequate input validation and output encoding, allowing attackers to craft malicious URLs that, when clicked by victims, execute arbitrary JavaScript code in their browser context.

The attack requires user interaction—specifically, a victim must click on or navigate to a maliciously crafted URL. Once triggered, the injected script runs with the same privileges as the user, potentially compromising session integrity, stealing sensitive data, or performing unauthorized actions on behalf of the victim.

Root Cause

The root cause of CVE-2025-31384 lies in the improper neutralization of user input containing HTML tags and JavaScript code. The Aviplugins Videos plugin does not adequately sanitize or encode input parameters before reflecting them back in the HTTP response. This failure to implement proper output encoding allows specially crafted input to be interpreted as executable script code by the browser.

WordPress plugins must sanitize all user-controllable input using functions like esc_html(), esc_attr(), or wp_kses() to prevent XSS attacks. The absence of these security measures in the vulnerable code path enables this exploitation.

Attack Vector

The attack leverages network-accessible functionality within the Videos plugin. An attacker crafts a malicious URL containing JavaScript payload in a vulnerable parameter. When a victim—such as a WordPress administrator or site visitor—clicks the link, the malicious script is reflected back by the server and executed in the victim's browser.

The exploitation scenario typically involves:

1. Attacker identifies a vulnerable parameter in the Videos plugin that reflects input without sanitization
2. Attacker crafts a URL containing malicious JavaScript payload embedded in the vulnerable parameter
3. Attacker distributes the malicious URL via phishing emails, social media, or other channels
4. Victim clicks the link while authenticated to the WordPress site
5. The malicious script executes, potentially stealing session cookies or performing actions as the victim

For detailed technical information about this vulnerability, refer to the Patchstack WordPress Plugin Vulnerability advisory.

Detection Methods for CVE-2025-31384

Indicators of Compromise

• Suspicious URLs in web server logs containing encoded JavaScript payloads or <script> tags targeting Videos plugin endpoints
• Unusual HTTP requests with reflected HTML/JavaScript content in query parameters
• Reports from users about unexpected browser behavior or redirects when using Videos plugin functionality
• Web Application Firewall (WAF) alerts for XSS pattern matches on plugin-related URLs

Detection Strategies

• Deploy Web Application Firewall rules to detect and block common XSS payloads in request parameters
• Implement Content Security Policy (CSP) headers to mitigate the impact of successful XSS attacks
• Configure server-side logging to capture full request URLs for forensic analysis
• Use WordPress security plugins with real-time scanning capabilities to identify exploitation attempts

Monitoring Recommendations

• Enable detailed access logging on web servers to capture query string parameters
• Monitor for anomalous patterns in URLs targeting /wp-content/plugins/videos/ paths
• Set up alerts for requests containing common XSS indicators such as <script>, javascript:, onerror=, and event handlers
• Review browser-side telemetry for unexpected script execution or document.cookie access attempts

How to Mitigate CVE-2025-31384

Immediate Actions Required

• Update the Aviplugins Videos plugin to a patched version if one is available from the vendor
• Temporarily disable or deactivate the Videos plugin until a security patch is released
• Implement Web Application Firewall rules to filter XSS payloads targeting the plugin
• Audit WordPress user sessions and consider forcing password resets for administrative accounts

Patch Information

Check the Patchstack WordPress Plugin Vulnerability advisory for the latest patch information. WordPress administrators should monitor the official plugin repository for updates to the Videos plugin that address this XSS vulnerability. Until a patch is available, implement the workarounds described below.

Workarounds

• Deactivate the Aviplugins Videos plugin if video functionality is not critical to site operations
• Implement strict Content Security Policy headers to prevent inline script execution: Content-Security-Policy: script-src 'self';
• Deploy a Web Application Firewall with XSS protection rules enabled
• Restrict access to the WordPress admin panel by IP allowlisting to reduce attack surface
• Educate users about the risks of clicking untrusted links, especially those containing complex query parameters

# Example Apache .htaccess rules to add basic XSS filtering
<IfModule mod_headers.c>
    Header set X-XSS-Protection "1; mode=block"
    Header set X-Content-Type-Options "nosniff"
    Header set Content-Security-Policy "script-src 'self'; object-src 'none';"
</IfModule>

# Block common XSS patterns in query strings
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{QUERY_STRING} (<|%3C).*script.*(>|%3E) [NC,OR]
    RewriteCond %{QUERY_STRING} javascript: [NC]
    RewriteRule .* - [F,L]
</IfModule>