CVE-2024-56029 Overview
CVE-2024-56029 is a reflected Cross-Site Scripting (XSS) vulnerability in the dreamwinner Easy Language Switcher plugin for WordPress. The flaw stems from improper neutralization of user input during web page generation [CWE-79]. It affects all versions of the plugin up to and including 1.0.
Attackers can craft malicious links that execute arbitrary JavaScript in a victim's browser when clicked. Successful exploitation can lead to session hijacking, credential theft, or unauthorized actions performed on behalf of the targeted user. Because the attack vector is network-based and requires only user interaction, phishing campaigns and social engineering remain the primary exploitation methods.
Critical Impact
Reflected XSS allows attackers to execute arbitrary script in the victim's browser context, potentially compromising authenticated WordPress sessions and enabling site takeover when administrators are targeted.
Affected Products
- dreamwinner Easy Language Switcher WordPress plugin (easy-language-switcher)
- All versions from n/a through <= 1.0
- WordPress sites with the vulnerable plugin installed and active
Discovery Timeline
- 2025-01-02 - CVE-2024-56029 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2024-56029
Vulnerability Analysis
The Easy Language Switcher plugin fails to sanitize and escape user-supplied input before reflecting it back into HTTP responses. This classic reflected XSS pattern allows an attacker to embed JavaScript payloads inside crafted URLs.
When a victim clicks the malicious link, the unsanitized input is rendered inside the page's HTML context. The browser then executes the injected script under the origin of the WordPress site hosting the plugin. The vulnerability carries a scope change, meaning the impact extends beyond the vulnerable component to other browser contexts and authenticated sessions.
Root Cause
The root cause is missing output encoding and input validation in plugin code that handles request parameters. WordPress provides helpers such as esc_html(), esc_attr(), and sanitize_text_field() for safely processing user input, but the plugin does not apply them consistently before echoing values into the response body.
Attack Vector
Exploitation requires an attacker to deliver a crafted URL to a target user, typically through phishing, malicious advertising, or social media links. Once the victim visits the URL while authenticated to the affected WordPress site, the injected payload executes in their browser session. Administrators are the highest-value targets because successful execution can lead to plugin installation, content modification, or full site compromise.
No authentication is required to craft the payload, and the attacker does not need direct access to the target site. See the Patchstack Vulnerability Report for additional technical details.
Detection Methods for CVE-2024-56029
Indicators of Compromise
- HTTP request logs containing script tags, javascript: URIs, or event handler attributes such as onerror= and onload= in query parameters destined for the plugin
- Outbound requests from administrator browsers to unexpected external domains shortly after visiting plugin-related URLs
- Unexpected WordPress administrative actions such as new user creation, plugin installation, or theme modification following an admin session
Detection Strategies
- Inspect web server access logs for URL parameters containing URL-encoded HTML or JavaScript payloads targeting easy-language-switcher endpoints
- Deploy a web application firewall (WAF) with rules tuned to identify reflected XSS patterns in request parameters
- Correlate referer headers and click-through data to identify users who reached the site through suspicious external links
Monitoring Recommendations
- Enable WordPress audit logging to capture administrative actions, plugin changes, and user role modifications
- Monitor browser Content Security Policy (CSP) violation reports for blocked inline script executions
- Alert on anomalous session activity from administrator accounts, including new IP addresses or geolocations
How to Mitigate CVE-2024-56029
Immediate Actions Required
- Deactivate and remove the Easy Language Switcher plugin until a patched version is released by the vendor
- Audit WordPress administrator accounts for unauthorized changes, new users, or modified plugins and themes
- Force a password reset for all administrative users and invalidate active sessions
Patch Information
No official patched version has been published at the time of this writing. The vulnerability affects all releases through version 1.0 of the plugin. Monitor the Patchstack Vulnerability Report for updates on remediation availability.
Workarounds
- Remove the plugin entirely and replace it with a maintained alternative language switcher
- Deploy a WAF with XSS protection rules to filter malicious payloads targeting plugin endpoints
- Implement a strict Content Security Policy (CSP) header that disallows inline scripts and restricts script sources to trusted origins
- Train administrators to avoid clicking unsolicited links and to verify URLs before authenticating to the WordPress site
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
