CVE-2025-49062: WP-jScrollPane Reflected XSS Vulnerability

CVE-2025-49062 Overview

CVE-2025-49062 is a reflected cross-site scripting (XSS) vulnerability in the WP-jScrollPane WordPress plugin developed by cornfeed. The flaw stems from improper neutralization of user input during web page generation [CWE-79]. All plugin versions up to and including 2.0.3 are affected. An attacker can craft a malicious URL that, when clicked by an authenticated or unauthenticated user, executes arbitrary JavaScript in the victim's browser session.

Critical Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in a victim's browser, enabling session hijacking, credential theft, and unauthorized actions within the WordPress site context.

Affected Products

WP-jScrollPane plugin versions through 2.0.3
WordPress sites with the cornfeed WP-jScrollPane plugin installed
All WordPress installations using vulnerable plugin versions

Discovery Timeline

2025-08-14 - CVE CVE-2025-49062 published to NVD
2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-49062

Vulnerability Analysis

The vulnerability is classified as a reflected cross-site scripting (XSS) issue under [CWE-79]. The WP-jScrollPane plugin fails to properly sanitize and encode user-supplied input before reflecting it back in HTTP responses. An attacker crafts a URL containing malicious JavaScript payloads as query parameters. When a user clicks the crafted link, the plugin echoes the payload into the rendered HTML without proper escaping. The browser interprets the injected content as executable script.

Exploitation requires user interaction, as indicated by the attack characteristics. The scope is changed, meaning the vulnerability impacts resources beyond the vulnerable component. Attackers commonly weaponize reflected XSS through phishing emails, social media links, or malicious advertisements directing victims to crafted URLs.

Root Cause

The root cause is missing or insufficient input sanitization in the plugin's request handling logic. User-controlled parameters flow directly into HTML output without being passed through WordPress sanitization functions such as esc_html(), esc_attr(), or wp_kses(). This violates secure output encoding practices for web applications.

Attack Vector

The attack vector is network-based and requires victim interaction. An attacker constructs a URL targeting a vulnerable endpoint in the plugin with a JavaScript payload embedded in a parameter. The attacker distributes the link through phishing or social engineering. When an authenticated administrator clicks the link, the injected script runs with their privileges, enabling actions such as creating rogue admin accounts, modifying content, or exfiltrating session cookies.

No verified public exploit code is available. See the Patchstack WordPress Plugin Vulnerability advisory for additional technical details.

Detection Methods for CVE-2025-49062

Indicators of Compromise

Unusual HTTP GET requests to WP-jScrollPane plugin endpoints containing URL-encoded <script> tags or JavaScript event handlers such as onerror= and onload=
Web server access logs showing reflected parameters with payloads like javascript:, alert(, or document.cookie
Unexpected creation of WordPress administrator accounts or modifications to user roles following user clicks on external links
Outbound requests from administrator browsers to attacker-controlled domains after visiting crafted URLs

Detection Strategies

Inspect WordPress access logs and web application firewall (WAF) logs for query strings containing HTML or JavaScript syntax targeting the wp-jscrollpane plugin path
Deploy WAF rules that flag reflected input containing <script>, onerror, or onmouseover patterns in requests to WordPress plugin URLs
Monitor for anomalous session activity originating from administrator accounts shortly after they followed external referrer links

Monitoring Recommendations

Enable detailed HTTP request logging on WordPress sites including full query strings and referrer headers
Alert on POST requests to /wp-admin/users.php or /wp-admin/user-new.php that follow suspicious GET requests to plugin endpoints
Track plugin inventory across WordPress sites and flag installations of WP-jScrollPane at versions 2.0.3 or earlier

How to Mitigate CVE-2025-49062

Immediate Actions Required

Audit all WordPress installations for the presence of the WP-jScrollPane plugin and identify versions at or below 2.0.3
Deactivate and remove the WP-jScrollPane plugin from affected sites until a patched version is verified available
Force password resets for WordPress administrator accounts and invalidate active sessions if exploitation is suspected
Review WordPress audit logs for unauthorized user creation, role escalation, or content modifications

Patch Information

At the time of this writing, the advisory lists vulnerable versions from n/a through 2.0.3. Administrators should consult the Patchstack WordPress Plugin Vulnerability advisory for current patch availability and version guidance.

Workarounds

Remove the WP-jScrollPane plugin entirely if a patched release is not yet available
Deploy a WordPress-aware web application firewall to block requests containing common XSS payload patterns
Restrict WordPress administrator access through IP allowlisting to reduce the attack surface for targeted phishing
Train administrative users to avoid clicking unsolicited links referencing their WordPress site URLs

bash

# Example WAF rule pattern to block reflected XSS payloads (ModSecurity)
SecRule REQUEST_URI "@contains wp-jscrollpane" \
    "phase:2,deny,status:403,id:1004901,\
    chain,msg:'Potential CVE-2025-49062 XSS attempt'"
    SecRule ARGS "@rx (?i)(<script|onerror=|onload=|javascript:)" \
        "t:none,t:urlDecodeUni"