CVE-2024-54387 Overview
CVE-2024-54387 is a reflected cross-site scripting (XSS) vulnerability in the Jaytesh Barange Posts Date Ranges WordPress plugin. The flaw affects all versions of posts-date-ranges up to and including 2.2. The plugin fails to properly neutralize user-supplied input before reflecting it back in generated web pages, allowing attackers to inject arbitrary JavaScript. Exploitation requires a victim to click a crafted link, after which the malicious payload executes in the victim's browser within the context of the affected WordPress site. The vulnerability is categorized under CWE-79.
Critical Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in a victim's browser session, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of authenticated WordPress users including administrators.
Affected Products
- Jaytesh Barange Posts Date Ranges plugin for WordPress
- All versions from n/a through <= 2.2
- WordPress sites with the posts-date-ranges plugin installed and active
Discovery Timeline
- 2024-12-16 - CVE-2024-54387 published to the National Vulnerability Database
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-54387
Vulnerability Analysis
The Posts Date Ranges plugin processes user-supplied input and reflects it into HTTP responses without applying proper output encoding or input sanitization. This behavior matches the classic reflected XSS pattern described in CWE-79. Because the payload is reflected back in the response, the attack requires user interaction such as clicking a crafted URL. The scope is changed (S:C), meaning the injected script can affect resources beyond the vulnerable component, including the broader WordPress administrative interface. The EPSS score is 0.387%, placing it in the 30th percentile for likelihood of exploitation.
Root Cause
The root cause is improper neutralization of input during web page generation. The plugin accepts request parameters and writes their values into the HTML response without escaping characters such as <, >, ", and '. WordPress provides sanitization helpers including esc_html(), esc_attr(), and wp_kses(), but the affected code paths do not invoke them on the reflected values.
Attack Vector
An attacker crafts a URL containing a malicious JavaScript payload in a vulnerable parameter handled by the plugin. The attacker delivers the link through phishing, social media, or compromised third-party sites. When an authenticated WordPress user clicks the link, the server reflects the payload into the response and the browser executes it. The script then runs with the privileges of the targeted user, enabling cookie theft, session hijacking, or forced administrative actions. Refer to the Patchstack XSS Vulnerability Report for additional technical context.
Detection Methods for CVE-2024-54387
Indicators of Compromise
- Web server access logs containing HTTP requests to posts-date-ranges plugin endpoints with URL-encoded <script>, onerror=, onload=, or javascript: payloads in query parameters.
- Unexpected outbound requests from administrator browsers to attacker-controlled domains following clicks on suspicious links.
- WordPress audit logs showing unauthorized administrative actions, plugin installs, or user creations following an admin session.
Detection Strategies
- Deploy a web application firewall (WAF) with signatures for reflected XSS payloads targeting WordPress plugin parameters.
- Inspect HTTP request and response pairs for unencoded user input mirrored from query strings into HTML response bodies.
- Use Content Security Policy (CSP) violation reports to identify inline script execution attempts originating from plugin-served pages.
Monitoring Recommendations
- Enable WordPress activity logging to capture privileged user actions and correlate them with referrer headers pointing to external sources.
- Monitor edge logs for spikes in requests containing reflected XSS signatures against /wp-content/plugins/posts-date-ranges/ paths.
- Alert on administrator sessions that originate from unusual geolocations or generate atypical API calls shortly after link clicks.
How to Mitigate CVE-2024-54387
Immediate Actions Required
- Deactivate and remove the Posts Date Ranges plugin from any WordPress installation until a patched version is confirmed available.
- Audit administrator and editor accounts for unauthorized changes, new users, or modified content created since the plugin was active.
- Force a password reset and invalidate active sessions for all privileged WordPress users on affected sites.
Patch Information
No fixed version has been published at the time of CVE assignment. The advisory states the vulnerability affects all versions through <= 2.2. Site operators should monitor the Patchstack advisory and the WordPress plugin repository for an updated release.
Workarounds
- Remove the posts-date-ranges plugin and replace it with an actively maintained alternative that provides equivalent functionality.
- Deploy a WAF rule that blocks requests containing HTML or JavaScript metacharacters in parameters handled by the plugin.
- Implement a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins to reduce XSS impact.
- Train administrators to avoid clicking unsolicited links to their own WordPress sites, particularly while authenticated.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
