CVE-2024-54319 Overview
CVE-2024-54319 is a reflected cross-site scripting (XSS) vulnerability in the Kundgenerator WordPress plugin. The flaw affects all versions up to and including 1.0.6. It stems from improper neutralization of user-supplied input during web page generation [CWE-79]. An unauthenticated attacker can craft a malicious URL that, when clicked by a victim, executes arbitrary JavaScript in the victim's browser session. The scope-changed CVSS vector indicates the injected script can affect resources beyond the vulnerable component.
Critical Impact
Successful exploitation allows attackers to execute arbitrary script in a victim's browser, enabling session theft, credential harvesting, and actions performed on behalf of the targeted user.
Affected Products
- Kundgenerator WordPress plugin versions through 1.0.6
- WordPress sites with the plugin installed and active
- Any user session interacting with crafted URLs targeting the vulnerable endpoint
Discovery Timeline
- 2024-12-13 - CVE-2024-54319 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2024-54319
Vulnerability Analysis
The vulnerability is a reflected XSS issue in the Kundgenerator plugin for WordPress. The plugin echoes user-controlled input back into HTTP responses without applying sufficient output encoding or input sanitization. When a victim loads a URL containing an attacker-supplied payload, the browser interprets the injected content as executable script in the context of the WordPress site.
The CVSS vector indicates network-based exploitation requiring user interaction. The changed scope reflects that script execution affects resources beyond the vulnerable plugin, including the broader WordPress session and DOM. Confidentiality, integrity, and availability impacts are each rated low because the script executes with the privileges of the targeted user rather than the server.
Root Cause
The root cause is improper neutralization of input during web page generation [CWE-79]. The plugin fails to encode special HTML characters such as <, >, and quotation marks before reflecting parameter values into the rendered page. WordPress provides sanitization helpers such as esc_html(), esc_attr(), and wp_kses(), but the affected code paths do not apply them consistently.
Attack Vector
An attacker delivers a crafted link to a victim through phishing, social media, or a malicious website. When the victim, who may be an authenticated WordPress administrator, visits the URL, the reflected payload executes in their browser. The script can read cookies that are not flagged HttpOnly, perform authenticated requests against the WordPress REST API, or modify rendered content. Detailed technical analysis is available in the Patchstack WordPress Vulnerability Report.
Detection Methods for CVE-2024-54319
Indicators of Compromise
- Web server access logs containing query strings with HTML or JavaScript syntax such as <script>, onerror=, or javascript: directed at Kundgenerator plugin endpoints
- Unexpected outbound requests from administrator browsers following clicks on external links
- New or modified WordPress administrator accounts created without authorized change records
Detection Strategies
- Inspect HTTP request parameters reaching /wp-content/plugins/kundgenerator/ paths for encoded or raw script payloads
- Deploy a web application firewall (WAF) rule set that flags reflected XSS patterns in query and form parameters
- Correlate referrer headers with admin session activity to identify suspicious cross-site navigation
Monitoring Recommendations
- Enable WordPress audit logging for plugin file changes, user role modifications, and option updates
- Monitor browser Content Security Policy (CSP) violation reports for inline script execution attempts
- Alert on administrator logins immediately followed by REST API calls to user or settings endpoints
How to Mitigate CVE-2024-54319
Immediate Actions Required
- Deactivate and remove the Kundgenerator plugin if no patched version is available for your installation
- Restrict administrative access to trusted networks and require multi-factor authentication for all WordPress administrators
- Educate administrators to avoid clicking unsolicited links that target the WordPress site
Patch Information
No fixed version is identified in the available advisory data. The vulnerability affects Kundgenerator through version 1.0.6. Monitor the Patchstack WordPress Vulnerability Report for vendor patch availability and apply updates as soon as they are released.
Workarounds
- Deploy a WAF with reflected XSS signatures in front of the WordPress site to filter malicious request parameters
- Implement a strict Content Security Policy that disallows inline scripts and restricts permitted script sources
- Set the HttpOnly and Secure flags on session cookies to limit the impact of successful script injection
# Example Content Security Policy header to limit XSS impact
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self'"
Header set X-XSS-Protection "1; mode=block"
Header edit Set-Cookie ^(.*)$ $1;HttpOnly;Secure;SameSite=Lax
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
