CVE-2024-54290 Overview
CVE-2024-54290 is a reflected Cross-Site Scripting (XSS) vulnerability in the Justin Fletcher Role Includer WordPress plugin. The flaw affects all plugin versions up to and including 1.6. Attackers can inject malicious scripts that execute in the victim's browser when the victim follows a crafted link. The issue is tracked under CWE-79 for improper neutralization of input during web page generation.
Critical Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in the context of an authenticated WordPress user, potentially leading to session theft, account takeover, or pivoting to administrative actions.
Affected Products
- Justin Fletcher Role Includer WordPress Plugin
- Versions from n/a through 1.6
- WordPress sites with the role-includer plugin installed
Discovery Timeline
- 2024-12-13 - CVE-2024-54290 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2024-54290
Vulnerability Analysis
The Role Includer plugin fails to properly sanitize user-supplied input before reflecting it back into rendered HTML output. This classifies the issue as a reflected XSS vulnerability under CWE-79. An attacker crafts a malicious URL containing JavaScript payloads in vulnerable parameters. When a victim clicks the link, the plugin echoes the unsanitized input into the response page. The browser then executes the attacker-controlled script within the trust context of the WordPress site.
The vulnerability requires user interaction, meaning the attack succeeds only when a target visits an attacker-crafted URL. The scope change indicates that successful exploitation can affect resources beyond the vulnerable component itself, such as other browser sessions or cookies.
Root Cause
The root cause is missing or insufficient output encoding of request parameters before they are inserted into the HTML response body. The plugin does not apply WordPress sanitization functions such as esc_html(), esc_attr(), or wp_kses() to user-controlled values prior to rendering them.
Attack Vector
The attack is network-based and requires no authentication. The attacker delivers a malicious URL through phishing emails, social media, or compromised websites. When a logged-in WordPress user follows the link, the injected script runs in their browser session. The script can exfiltrate session cookies, perform actions on behalf of the user, or deliver further payloads. Administrator users are the highest-value targets because their sessions grant access to plugin installation and content modification capabilities.
No verified proof-of-concept code is publicly available. Refer to the Patchstack advisory for further technical details.
Detection Methods for CVE-2024-54290
Indicators of Compromise
- HTTP request logs containing URL parameters with <script>, javascript:, or HTML event handlers such as onerror= and onload= targeting Role Includer plugin endpoints
- Unexpected outbound requests from WordPress administrator browsers to unknown external domains shortly after clicking inbound links
- Web server access logs showing encoded payloads (%3Cscript%3E, %22%3E) in query strings hitting plugin URLs
Detection Strategies
- Inspect WordPress access logs for query strings containing HTML or JavaScript metacharacters directed at plugin URLs
- Deploy a Web Application Firewall (WAF) rule set that flags reflected XSS patterns against wp-content/plugins/role-includer/ paths
- Use endpoint browser telemetry to identify script executions originating from WordPress admin sessions that contact suspicious domains
Monitoring Recommendations
- Monitor authentication events for WordPress administrator accounts following clicks on inbound email links
- Alert on plugin file modifications or new administrative user creation events that correlate with reflected XSS request patterns
- Track Content Security Policy (CSP) violation reports if CSP is deployed on the WordPress site
How to Mitigate CVE-2024-54290
Immediate Actions Required
- Disable or remove the Role Includer plugin from any WordPress installation running version 1.6 or earlier until a patched release is verified
- Audit WordPress administrator accounts for unauthorized sessions, new users, or unexpected role assignments
- Restrict administrator access to trusted networks and require multi-factor authentication for all privileged WordPress accounts
Patch Information
No official patched version is referenced in the available advisory data. Site operators should monitor the Patchstack advisory and the WordPress plugin repository for an updated release. Until a fix is published, removal of the plugin is the recommended remediation.
Workarounds
- Deactivate and uninstall the Role Includer plugin until a vendor patch becomes available
- Deploy a WAF with rules that block reflected XSS payloads targeting WordPress plugin parameters
- Enforce a strict Content Security Policy that disallows inline scripts to reduce the impact of any successful injection
- Train administrators to avoid clicking unsolicited links that reference their WordPress site domain
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
