CVE-2024-52455: GoQSmile XSS Vulnerability

CVE-2024-52455 Overview

CVE-2024-52455 is a reflected Cross-Site Scripting (XSS) vulnerability in the GoQSmile WordPress plugin developed by goqsystem. The flaw affects all plugin versions up to and including 1.0.1. 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 issue is tracked under the Patchstack vulnerability database and impacts confidentiality, integrity, and availability at a limited scope.

Critical Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in the context of a victim's browser, enabling session hijacking, credential theft, and unauthorized actions on the WordPress site.

Affected Products

goqsystem GoQSmile WordPress plugin
All versions from initial release through 1.0.1
WordPress installations with the GoQSmile plugin enabled

Discovery Timeline

2024-12-02 - CVE-2024-52455 published to NVD
2026-04-23 - Last updated in NVD database

Technical Details for CVE-2024-52455

Vulnerability Analysis

The GoQSmile plugin fails to properly sanitize or encode user-controlled input before reflecting it back into HTTP responses. When the plugin processes request parameters and embeds them into the generated HTML output, malicious script payloads pass through without neutralization. The browser then parses and executes the injected JavaScript in the context of the affected WordPress site origin.

Reflected XSS requires user interaction — typically a victim clicking a crafted link. Once executed, the payload runs with the privileges of the victim's session. If a logged-in administrator interacts with the malicious URL, the attacker can escalate impact by performing authenticated actions, exfiltrating session cookies, or modifying plugin and site configuration.

The EPSS score for this CVE is 0.197% with a percentile of 41.49, indicating low observed exploitation activity at this time. No public proof-of-concept code is currently linked in the available references.

Root Cause

The root cause is missing output encoding and input validation in the GoQSmile plugin code path that reflects request parameters into rendered pages. Per [CWE-79], the plugin does not apply context-appropriate escaping such as HTML entity encoding or JavaScript string escaping before returning user input within the response body.

Attack Vector

The vulnerability is exploited over the network without authentication but requires user interaction. An attacker crafts a URL containing a JavaScript payload as a parameter handled by the vulnerable plugin endpoint. The attacker delivers the link through phishing email, social media, or a malicious referrer. When the victim loads the URL on a site running GoQSmile <= 1.0.1, the injected script executes in the victim's browser under the site's origin.

No verified exploitation code is published. See the Patchstack advisory for technical details on the affected parameter and payload structure.

Detection Methods for CVE-2024-52455

Indicators of Compromise

HTTP requests to GoQSmile plugin endpoints containing <script>, javascript:, onerror=, or onload= substrings in query parameters
Unexpected outbound requests from administrator browsers to attacker-controlled domains shortly after clicking external links
WordPress audit log entries showing configuration changes initiated immediately after a session was active on a crafted GoQSmile URL

Detection Strategies

Inspect web server access logs for requests targeting GoQSmile plugin paths with URL-encoded HTML or script characters such as %3Cscript%3E, %3Cimg, or %22onerror
Deploy a web application firewall rule that flags reflected parameter values containing executable JavaScript syntax
Monitor browser-side Content Security Policy violation reports for inline script execution on pages served by the plugin

Monitoring Recommendations

Enable WordPress security plugin logging for all requests to plugin-handled endpoints
Centralize web server and WAF logs in a SIEM and alert on reflected XSS signatures targeting /wp-content/plugins/goqsmile/
Track administrator session activity for anomalous API calls following external link clicks

How to Mitigate CVE-2024-52455

Immediate Actions Required

Disable or remove the GoQSmile plugin until a patched version is confirmed available from goqsystem
Audit WordPress administrator accounts for unexpected configuration changes or new privileged users
Force a password reset and session invalidation for all WordPress administrators if exposure is suspected

Patch Information

At the time of publication, the Patchstack advisory lists all versions through 1.0.1 as vulnerable with no fixed version identified. Monitor the Patchstack advisory and the official goqsystem channels for an updated release that addresses CVE-2024-52455.

Workarounds

Deploy a WAF rule blocking requests to GoQSmile plugin URLs that contain HTML or JavaScript metacharacters in parameters
Implement a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins
Restrict access to the WordPress admin interface by source IP address to reduce the risk of administrator-targeted phishing

bash

# Example ModSecurity rule to block common reflected XSS payloads on the GoQSmile plugin path
SecRule REQUEST_URI "@contains /wp-content/plugins/goqsmile/" \
  "id:1005245,phase:2,deny,status:403,\
   chain,msg:'Potential CVE-2024-52455 Reflected XSS attempt'"
  SecRule ARGS "@rx (?i)(<script|javascript:|onerror=|onload=|<img[^>]+src)" \
    "t:none,t:urlDecodeUni,t:htmlEntityDecode"