CVE-2025-32548: Hamburger Icon Menu Lite XSS Vulnerability

CVE-2025-32548 Overview

CVE-2025-32548 is a Reflected Cross-Site Scripting (XSS) vulnerability in the Hamburger Icon Menu Lite WordPress plugin developed by borisolhor. The vulnerability arises from improper neutralization of user-supplied input during web page generation, allowing attackers to inject malicious scripts that execute in the context of a victim's browser session.

Critical Impact

This vulnerability enables attackers to execute arbitrary JavaScript in victims' browsers, potentially leading to session hijacking, credential theft, defacement, or malware distribution through affected WordPress sites.

Affected Products

• Hamburger Icon Menu Lite plugin for WordPress versions from n/a through 1.0

Discovery Timeline

• 2025-04-17 - CVE-2025-32548 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-32548

Vulnerability Analysis

This vulnerability is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation), which encompasses Cross-Site Scripting vulnerabilities. The Hamburger Icon Menu Lite plugin fails to properly sanitize, validate, or escape user-controlled input before reflecting it back in the HTTP response, creating an opportunity for attackers to inject malicious script content.

Reflected XSS vulnerabilities require user interaction to exploit—typically through social engineering tactics that convince a victim to click a malicious link. When successful, the injected script executes within the security context of the vulnerable WordPress site, granting the attacker access to sensitive data such as session cookies, authentication tokens, and the ability to perform actions on behalf of the authenticated user.

Root Cause

The root cause of this vulnerability is insufficient input validation and output encoding within the Hamburger Icon Menu Lite plugin. The plugin accepts user-supplied data through HTTP parameters and reflects this data in the response without proper sanitization or contextual output encoding. WordPress provides built-in functions such as esc_html(), esc_attr(), and wp_kses() for properly escaping output, but the vulnerable code path does not adequately employ these protective measures.

Attack Vector

The attack vector for CVE-2025-32548 is network-based and requires user interaction. An attacker crafts a malicious URL containing JavaScript payload in a vulnerable parameter. The attacker then distributes this URL through phishing emails, social media, or other channels. When a victim clicks the link while authenticated to the WordPress site, the malicious script executes in their browser context.

The attack does not require authentication or special privileges on the target system, making it accessible to any remote attacker. The scope is changed, meaning the vulnerability can affect resources beyond the vulnerable component itself—particularly the user's browser session and any data accessible through JavaScript in that context.

Detection Methods for CVE-2025-32548

Indicators of Compromise

• Unusual URL parameters containing JavaScript code or HTML entities in requests to WordPress pages using Hamburger Icon Menu Lite
• Web server logs showing encoded script tags (<script>, javascript:, onerror=) in query string parameters
• User reports of unexpected browser behavior or redirects when visiting the WordPress site
• Evidence of phishing campaigns distributing links to the affected WordPress installation

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common XSS payload patterns in URL parameters
• Implement Content Security Policy (CSP) headers to prevent inline script execution and detect policy violations
• Configure intrusion detection systems to alert on requests containing common XSS indicators such as <script>, javascript:, and event handler attributes
• Review web server access logs for requests with unusually long query strings or encoded special characters

Monitoring Recommendations

• Enable verbose logging for all requests to WordPress plugin endpoints
• Monitor for CSP violation reports which may indicate attempted XSS exploitation
• Establish baseline traffic patterns and alert on anomalous request patterns to plugin resources
• Correlate authentication events with suspicious request activity to identify potential session hijacking attempts

How to Mitigate CVE-2025-32548

Immediate Actions Required

• Update the Hamburger Icon Menu Lite plugin to a patched version when available from the developer
• If no patch is available, deactivate and remove the Hamburger Icon Menu Lite plugin until a fix is released
• Implement Content Security Policy headers to mitigate the impact of any successful XSS exploitation
• Review WordPress user accounts and sessions for any signs of compromise

Patch Information

No vendor patch information was available at the time of publication. Site administrators should monitor the Patchstack Vulnerability Report for updates on remediation options and check the WordPress plugin repository for updated versions.

Workarounds

• Deactivate the Hamburger Icon Menu Lite plugin until a security update is available
• 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
• Consider using an alternative hamburger menu plugin that has been audited for security vulnerabilities
• Restrict access to WordPress admin areas to trusted IP addresses where feasible

# Example: Adding Content Security Policy header in Apache .htaccess
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline';"

# Example: Adding Content Security Policy header in Nginx
add_header Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline';";