CVE-2025-46461 Overview
CVE-2025-46461 is a DOM-based Cross-Site Scripting (XSS) vulnerability in the Relentless Apps RRSSB WordPress plugin. The flaw stems from improper neutralization of input during web page generation [CWE-79]. Affected versions include RRSSB up to and including 1.0.1. Successful exploitation requires user interaction and allows attackers to execute arbitrary JavaScript in a victim's browser session. The scope-changed impact can affect data confidentiality, integrity, and availability beyond the vulnerable component.
Critical Impact
Authenticated attackers with low privileges can inject malicious scripts that execute in other users' browsers, enabling session theft, credential harvesting, and unauthorized actions within the WordPress site.
Affected Products
- Relentless Apps RRSSB WordPress plugin versions up to and including 1.0.1
- WordPress installations with the RRSSB plugin enabled
- Sites relying on RRSSB for social sharing button functionality
Discovery Timeline
- 2025-04-24 - CVE-2025-46461 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-46461
Vulnerability Analysis
The RRSSB plugin fails to properly sanitize user-controlled input before it reaches the Document Object Model (DOM). This creates a DOM-based XSS condition where malicious payloads execute within the trusted context of the WordPress site. Unlike reflected or stored XSS, DOM-based XSS occurs entirely on the client side, making detection through server-side monitoring more challenging. The Patchstack advisory confirms the vulnerability affects all versions through 1.0.1. See the Patchstack WordPress XSS Vulnerability advisory for technical details.
Root Cause
The root cause is improper neutralization of input during web page generation [CWE-79]. The plugin processes input passed through client-side JavaScript sinks without applying context-aware output encoding or sanitization. When attacker-controlled data reaches sinks such as innerHTML, document.write, or similar DOM manipulation methods, browsers interpret the payload as executable script rather than inert content.
Attack Vector
Exploitation requires an authenticated user with low privileges to craft a malicious request and a victim to interact with the resulting content. The attacker delivers a payload through parameters processed by the plugin's client-side logic. When a victim loads the affected page, the browser evaluates the injected script under the site's origin. The scope-changed nature of the vulnerability means the impact extends beyond the RRSSB plugin to other components sharing the browser session, including administrative interfaces and authentication cookies.
No public proof-of-concept exploit code is available. Refer to the vendor advisory for technical specifics.
Detection Methods for CVE-2025-46461
Indicators of Compromise
- Unexpected <script> tags or JavaScript event handlers in rendered pages containing RRSSB share button markup
- Outbound requests from WordPress user sessions to unknown domains following interaction with social sharing widgets
- Anomalous administrative actions performed by authenticated users shortly after visiting pages with RRSSB content
Detection Strategies
- Review WordPress plugin inventory and flag installations of RRSSB at version 1.0.1 or earlier
- Inspect web server access logs for requests containing encoded JavaScript payloads or HTML entities targeting RRSSB endpoints
- Deploy Content Security Policy (CSP) violation reporting to surface inline script execution attempts
Monitoring Recommendations
- Monitor WordPress audit logs for unauthorized changes to user roles, settings, or content created through hijacked sessions
- Track browser telemetry for DOM mutations occurring on pages that render RRSSB widgets
- Alert on new administrative accounts or privilege changes originating from sessions that recently loaded plugin-rendered pages
How to Mitigate CVE-2025-46461
Immediate Actions Required
- Identify all WordPress sites running the RRSSB plugin and confirm installed versions
- Deactivate the RRSSB plugin on affected sites until a patched release is available
- Rotate WordPress administrator and editor credentials if suspicious activity is detected
- Enforce a strict Content Security Policy that disallows inline scripts and untrusted origins
Patch Information
At the time of the NVD entry, no fixed version beyond 1.0.1 is referenced in the advisory. Site owners should monitor the Patchstack WordPress XSS Vulnerability advisory and the WordPress plugin repository for updated releases from Relentless Apps.
Workarounds
- Remove the RRSSB plugin entirely and replace it with a maintained social sharing plugin
- Restrict access to WordPress authoring roles to reduce the pool of low-privilege accounts capable of triggering the vulnerability
- Deploy a web application firewall (WAF) rule to filter script-like payloads targeting parameters processed by the plugin
- Enable browser security headers including X-Content-Type-Options: nosniff and a restrictive Content-Security-Policy
# Configuration example: disable the RRSSB plugin via WP-CLI
wp plugin deactivate rrssb
wp plugin delete rrssb
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
