CVE-2024-37117: Uncanny Automator Pro XSS Vulnerability

CVE-2024-37117 Overview

CVE-2024-37117 is a reflected cross-site scripting (XSS) vulnerability in the Uncanny Automator Pro WordPress plugin developed by Uncanny Owl. The flaw affects all versions up to and including 5.3. Attackers can inject malicious scripts that execute in a victim's browser after the user interacts with a crafted link. The issue is tracked under CWE-79, covering improper neutralization of input during web page generation.

Critical Impact

Successful exploitation lets attackers execute arbitrary JavaScript in the context of the targeted user's session, potentially leading to session hijacking, credential theft, or administrative actions on WordPress sites running the vulnerable plugin.

Affected Products

• Uncanny Owl Uncanny Automator Pro versions up to and including 5.3
• WordPress installations with the vulnerable plugin active
• Any site integrating the plugin's affected input handling paths

Discovery Timeline

• 2024-07-22 - CVE-2024-37117 published to NVD
• 2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-37117

Vulnerability Analysis

The vulnerability stems from insufficient sanitization of user-supplied input before it is reflected back into HTML responses generated by the Uncanny Automator Pro plugin. Attackers craft a URL containing malicious JavaScript payloads. When a victim clicks the link, the plugin echoes the attacker-controlled input into the response page without proper encoding. The browser then executes the injected script within the trust context of the hosting WordPress site.

Reflected XSS requires user interaction, typically through phishing or social engineering. The scope change in the vulnerability profile indicates that script execution can affect resources beyond the vulnerable component, including authenticated session cookies and administrative interfaces served by the same origin.

Root Cause

The root cause is missing or incomplete output encoding on parameters passed to the plugin. User input flows into the rendered HTML without context-appropriate escaping, allowing HTML and JavaScript to be interpreted by the browser. This maps to CWE-79, improper neutralization of input during web page generation.

Attack Vector

The attack vector is network-based with low complexity. An attacker crafts a URL targeting the vulnerable plugin endpoint and delivers it to a victim through email, chat, or a malicious page. When the victim follows the link while authenticated to the WordPress site, the injected script executes with the victim's privileges. Administrator targets yield the highest impact, including account takeover and persistent backdoor installation through plugin or theme modification.

No verified public proof-of-concept code is available. Refer to the Patchstack Vulnerability Advisory for additional technical details.

Detection Methods for CVE-2024-37117

Indicators of Compromise

• Web server access logs containing query parameters with HTML tags such as <script>, onerror=, or javascript: directed at Uncanny Automator Pro endpoints
• Unexpected outbound requests from administrator browsers to attacker-controlled domains following a WordPress session
• New or modified WordPress administrator accounts created shortly after suspicious URL requests

Detection Strategies

• Deploy a web application firewall (WAF) with rules that identify reflected XSS payloads in query strings and POST bodies
• Inspect HTTP referrers and parameter values for encoded script payloads targeting plugin URL paths
• Correlate WordPress audit logs with web proxy telemetry to identify administrator sessions following untrusted external links

Monitoring Recommendations

• Enable verbose logging on WordPress and reverse proxies to capture full request URIs and parameters
• Alert on administrator-level actions originating from sessions that recently clicked external referrers
• Monitor plugin version inventory to confirm all WordPress instances are patched above 5.3

How to Mitigate CVE-2024-37117

Immediate Actions Required

• Update Uncanny Automator Pro to a version later than 5.3 as soon as the vendor patch is applied
• Audit WordPress administrator accounts for unauthorized changes and rotate credentials for exposed users
• Instruct administrators to avoid clicking untrusted links while authenticated to the WordPress admin interface

Patch Information

Uncanny Owl addressed the issue in a release following version 5.3. Review the Patchstack Vulnerability Advisory and the vendor's changelog to confirm the fixed version before upgrading production sites.

Workarounds

• Deploy a WAF with signatures that block reflected XSS attempts against WordPress plugin endpoints
• Enforce a strict Content Security Policy (CSP) that disallows inline scripts and restricts script sources
• Temporarily deactivate the Uncanny Automator Pro plugin until the patched version is deployed

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