CVE-2024-54288: LDD Directory Lite XSS Vulnerability

CVE-2024-54288 Overview

CVE-2024-54288 is a reflected cross-site scripting (XSS) vulnerability in the LDD Directory Lite WordPress plugin developed by LDD Web Design. The flaw affects all versions up to and including 3.3 and stems from improper neutralization of user-supplied input during web page generation [CWE-79]. An attacker can craft a malicious URL that, when visited by an authenticated user or administrator, executes arbitrary JavaScript in the victim's browser session. The vulnerability has a network attack vector and requires user interaction to trigger.

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

Affected Products

LDD Directory Lite WordPress plugin (ldd-directory-lite) versions through 3.3
WordPress installations with the vulnerable plugin enabled
Sites where unauthenticated users can deliver crafted URLs to administrators or editors

Discovery Timeline

2024-12-13 - CVE-2024-54288 published to NVD
2026-04-23 - Last updated in NVD database

Technical Details for CVE-2024-54288

Vulnerability Analysis

The LDD Directory Lite plugin fails to sanitize and encode user-controllable input before reflecting it back in HTTP responses. When the plugin echoes request parameters into rendered HTML without applying context-appropriate output escaping, attacker-controlled JavaScript becomes part of the page DOM. The issue is classified as a reflected XSS because the payload travels in the request and is reflected directly in the response rather than being persisted in the database.

The scope-changed impact indicates that exploitation can affect resources beyond the vulnerable component itself, such as the parent WordPress application and any iframes or trusted contexts the page renders within. The EPSS data lists a probability of 0.197% at percentile 41.551 as of 2026-06-09.

Root Cause

The root cause is missing input validation and output encoding in the plugin's request-handling logic. Parameters supplied via GET requests are concatenated into HTML output without being passed through WordPress sanitization helpers such as esc_html(), esc_attr(), or wp_kses(). This allows raw <script> tags and event-handler attributes to be injected.

Attack Vector

An attacker crafts a URL containing a JavaScript payload in a vulnerable parameter and delivers it to a logged-in WordPress user through phishing, social media, or a malicious referrer. When the target loads the URL, the plugin reflects the payload into the response, and the browser executes it in the context of the WordPress site. The attacker can then exfiltrate cookies, perform actions on behalf of the user, or pivot to administrative functionality.

No verified public proof-of-concept code is available. Technical context is documented in the Patchstack WordPress Vulnerability advisory.

Detection Methods for CVE-2024-54288

Indicators of Compromise

HTTP GET requests to LDD Directory Lite endpoints containing URL-encoded <script>, onerror=, onload=, or javascript: substrings
Web server access logs showing unusually long query strings or parameters reflecting HTML metacharacters
Browser console errors or outbound requests to unfamiliar domains originating from pages served by the plugin
Unexpected administrative actions performed by authenticated WordPress users shortly after clicking external links

Detection Strategies

Inspect web application firewall (WAF) logs for OWASP CRS rule hits in categories 941 (XSS) targeting plugin URLs
Review WordPress access logs for requests to ldd-directory-lite paths containing encoded angle brackets or script tokens
Run authenticated vulnerability scans that fingerprint installed plugin versions and flag versions at or below 3.3

Monitoring Recommendations

Forward WordPress and web server logs to a centralized log platform and alert on reflected XSS signatures targeting the plugin
Monitor administrator session activity for anomalies such as new user creation or theme/plugin changes following suspicious URL visits
Track outbound traffic from administrator browsers to identify beaconing or data exfiltration following XSS execution

How to Mitigate CVE-2024-54288

Immediate Actions Required

Identify all WordPress sites with the LDD Directory Lite plugin installed and determine the installed version
Disable or remove the plugin on sites running version 3.3 or earlier until a patched release is applied
Rotate administrator and editor credentials if suspicious URL access or session activity is observed
Inform site administrators not to click untrusted links while authenticated to the WordPress dashboard

Patch Information

At the time of CVE publication, the advisory lists affected versions through 3.3. Refer to the Patchstack advisory and the WordPress plugin repository for the latest fixed release and upgrade instructions.

Workarounds

Deploy a WAF rule that blocks requests to ldd-directory-lite endpoints containing HTML or script metacharacters in query parameters
Apply a Content Security Policy (CSP) that restricts inline script execution and limits permitted script sources
Enforce the HttpOnly and SameSite=Lax attributes on WordPress authentication cookies to reduce session theft impact
Restrict access to the WordPress administrative interface by IP allowlist where operationally feasible

bash

# Example WAF rule (ModSecurity) blocking script payloads on plugin endpoints
SecRule REQUEST_URI "@contains /ldd-directory-lite/" \
  "chain,phase:2,deny,status:403,id:1005401,msg:'Block reflected XSS attempt against LDD Directory Lite'"
SecRule ARGS "@rx (?i)(<script|onerror=|onload=|javascript:)" "t:urlDecodeUni,t:lowercase"