CVE-2024-54249 Overview
CVE-2024-54249 is a reflected Cross-Site Scripting (XSS) vulnerability in the Jules Colle Advanced Options Editor plugin for WordPress. The flaw affects all versions up to and including 1.0. It stems from improper neutralization of user-supplied input during web page generation, classified under [CWE-79].
An unauthenticated attacker can craft a malicious URL that, when visited by a target user, executes arbitrary JavaScript in the victim's browser session. Successful exploitation enables session hijacking, credential theft, and unauthorized actions against the affected WordPress site. The vulnerability requires user interaction and has a scope-changed impact across confidentiality, integrity, and availability.
Critical Impact
Reflected XSS allows unauthenticated attackers to execute arbitrary scripts in a victim's browser, potentially compromising WordPress administrator sessions and enabling site takeover.
Affected Products
- Jules Colle Advanced Options Editor plugin for WordPress
- All versions from n/a through 1.0
- WordPress installations with the plugin enabled
Discovery Timeline
- 2024-12-16 - CVE CVE-2024-54249 published to NVD
- 2026-04-28 - Last updated in NVD database
Technical Details for CVE-2024-54249
Vulnerability Analysis
The Advanced Options Editor plugin fails to properly sanitize or encode user-controllable input that is reflected back in HTTP responses. When a request parameter containing HTML or JavaScript payloads is returned in the rendered page without contextual output encoding, the browser interprets the injected content as executable code.
Reflected XSS differs from stored XSS in that the malicious payload is not persisted on the server. Instead, the attacker delivers a crafted URL via phishing email, malicious link, or compromised referrer. The victim must click the link or load the URL for the payload to execute in their session context.
Because the CVSS vector indicates a changed scope, the injected script can affect resources beyond the vulnerable component, such as the WordPress administrative interface. The EPSS score is 0.242% with a percentile ranking near the 48th percentile, indicating moderate likelihood of exploitation activity.
Root Cause
The root cause is missing or insufficient input neutralization in the plugin's request handler. User input flows directly into the HTTP response body without HTML entity encoding or context-aware escaping. The plugin does not enforce a Content Security Policy (CSP) or sanitize parameters against known XSS payload patterns.
Attack Vector
Attackers exploit this vulnerability remotely over the network. The attacker crafts a URL containing JavaScript payload parameters and delivers it to a WordPress user, typically an administrator. When the victim loads the URL, the reflected payload executes in the browser, inheriting the victim's authenticated session.
Typical attack scenarios include stealing authentication cookies, injecting rogue administrative accounts via cross-site request forgery chains, redirecting users to attacker-controlled domains, and delivering follow-on payloads such as drive-by downloads. Refer to the Patchstack WordPress Vulnerability Report for additional technical context.
Detection Methods for CVE-2024-54249
Indicators of Compromise
- HTTP request logs containing URL parameters with <script>, javascript:, onerror=, or onload= payload patterns directed at the Advanced Options Editor plugin endpoints
- Unexpected outbound requests from administrator browsers to unfamiliar domains immediately after loading WordPress admin pages
- New or modified WordPress administrator accounts created without authorized change requests
- Suspicious referrer headers pointing to attacker-controlled phishing infrastructure
Detection Strategies
- Inspect web server access logs for requests to the Advanced Options Editor plugin containing encoded or raw HTML and JavaScript tokens in query parameters
- Deploy web application firewall (WAF) rules that match common reflected XSS payload signatures targeting WordPress plugin endpoints
- Correlate phishing email telemetry with subsequent administrator session activity to identify successful click-through exploitation
Monitoring Recommendations
- Enable WordPress audit logging to track administrator session creation, role changes, and plugin configuration modifications
- Monitor for anomalous JavaScript execution and DOM modifications using browser-based telemetry where available
- Alert on creation of new WordPress administrator users or modifications to existing privileged accounts outside change windows
How to Mitigate CVE-2024-54249
Immediate Actions Required
- Disable the Advanced Options Editor plugin until a vendor-supplied patch is verified to address the vulnerability
- Audit WordPress administrator accounts for unauthorized additions or privilege changes since plugin installation
- Force password resets and session invalidation for all administrator users who may have interacted with crafted URLs
- Review web server access logs for indicators of attempted exploitation
Patch Information
At the time of publication, no fixed version of the Advanced Options Editor plugin has been identified. The vulnerability affects all versions through 1.0. Monitor the Patchstack advisory and the WordPress plugin repository for an updated release.
Workarounds
- Remove the Advanced Options Editor plugin from production WordPress installations as the most reliable mitigation
- Deploy a WAF with rule sets that block reflected XSS payloads targeting the plugin's request parameters
- Implement a strict Content Security Policy on the WordPress site to restrict inline script execution and limit script sources
- Train administrators to avoid clicking unsolicited links to WordPress admin URLs and to verify URL parameters before navigation
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
