CVE-2024-52418: Gameplan Plugin XSS Vulnerability

CVE-2024-52418 Overview

CVE-2024-52418 is a reflected Cross-Site Scripting (XSS) vulnerability in the CactusThemes Gameplan WordPress theme. The issue affects all versions up to and including 1.5.10. The theme fails to properly neutralize user-supplied input during web page generation, allowing attackers to inject malicious scripts that execute in a victim's browser. Exploitation requires the victim to click a crafted link or visit an attacker-controlled page. Successful attacks can lead to session theft, credential harvesting, or unauthorized actions performed in the context of the victim's WordPress session. The vulnerability is tracked under [CWE-79] Improper Neutralization of Input During Web Page Generation.

Critical Impact
Attackers can execute arbitrary JavaScript in victims' browsers, potentially hijacking authenticated WordPress sessions and performing administrative actions on the site.

Affected Products

CactusThemes Gameplan WordPress Theme — versions up to and including 1.5.10
WordPress sites running vulnerable Gameplan theme installations
Any WordPress environment where the theme is active and reachable from untrusted networks

Discovery Timeline

2024-11-18 - CVE-2024-52418 published to the National Vulnerability Database
2026-04-23 - Last updated in NVD database

Technical Details for CVE-2024-52418

Vulnerability Analysis

The Gameplan theme processes user-controlled input and reflects it back in HTTP responses without proper sanitization or output encoding. This pattern enables reflected XSS, where attacker-supplied payloads embedded in URL parameters are rendered as executable script content within the victim's browser context.

The attack requires user interaction. A victim must click a crafted link or visit a page that triggers the malicious request. Because the vulnerability operates across a security scope change, successful exploitation can affect resources beyond the vulnerable component, including authenticated session data tied to the WordPress domain.

Reflected XSS in WordPress themes is particularly impactful when administrators are targeted. Script execution in an admin context can lead to plugin installation, user creation, or content modification through the WordPress REST API.

Root Cause

The root cause is missing or insufficient output encoding of user-controlled values before they are inserted into HTML responses generated by the Gameplan theme. The theme accepts input through HTTP request parameters and writes that data into the response body without applying WordPress sanitization functions such as esc_html(), esc_attr(), or wp_kses().

Attack Vector

An attacker crafts a URL containing a JavaScript payload in a vulnerable parameter handled by the theme. The attacker distributes this URL via phishing email, social media, or malicious advertising. When a logged-in WordPress user clicks the link, the theme reflects the payload into the rendered page and the browser executes the script.

The vulnerability requires no authentication for the attacker. The attack surface is reachable from the network, and exploitation complexity is low.

No verified proof-of-concept code is available. See the Patchstack WordPress Theme Advisory for additional technical context.

Detection Methods for CVE-2024-52418

Indicators of Compromise

HTTP request logs containing <script>, javascript:, onerror=, or onload= payloads in query string parameters directed at Gameplan theme endpoints
Unexpected outbound requests from administrator browsers to attacker-controlled domains shortly after clicking external links
New WordPress administrator accounts, plugins, or scheduled tasks created without authorized change records

Detection Strategies

Inspect web server access logs for URL parameters containing URL-encoded script tags or event handler attributes targeting /wp-content/themes/gameplan/ paths
Deploy a Web Application Firewall (WAF) rule set that flags reflected XSS patterns in requests to WordPress theme files
Correlate referrer headers showing external sources with subsequent privileged WordPress API calls

Monitoring Recommendations

Enable WordPress audit logging to track administrative actions, user creation, and plugin installation events
Monitor browser console error reports from administrators for Content Security Policy (CSP) violations
Alert on anomalous session activity such as cookie reuse from unexpected IP addresses or geographies

How to Mitigate CVE-2024-52418

Immediate Actions Required

Identify all WordPress sites running the Gameplan theme and confirm installed versions against the affected range up to 1.5.10
Restrict administrator access to trusted networks and require administrators to avoid clicking untrusted links while authenticated
Deploy a WAF policy that blocks reflected XSS payloads targeting the Gameplan theme until a patch is applied

Patch Information

At the time of NVD publication, no fixed version is listed for the Gameplan theme. Site operators should monitor the Patchstack WordPress Theme Advisory and the CactusThemes vendor channel for an updated release. If no patch becomes available, consider replacing the theme with a maintained alternative.

Workarounds

Disable or replace the Gameplan theme if business requirements permit
Implement a strict Content Security Policy that disallows inline script execution and restricts script sources to trusted origins
Enforce short session lifetimes and require re-authentication for sensitive WordPress administrative actions

bash

# Example Content Security Policy header for WordPress (nginx)
add_header Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self';" always;