CVE-2025-31402 Overview
CVE-2025-31402 is a Cross-Site Request Forgery (CSRF) vulnerability in the NewsBoard Post and RSS Scroller WordPress plugin that chains into Stored Cross-Site Scripting (XSS). The flaw affects all plugin versions up to and including 1.2.12. An attacker can craft a malicious page that, when visited by an authenticated administrator, submits forged requests to the plugin and persists attacker-controlled JavaScript in the WordPress backend. The stored payload then executes in the browser of any user who loads the affected page. The issue is tracked under CWE-352 and was published to NVD on April 9, 2025.
Critical Impact
A successful attack stores attacker JavaScript in the WordPress site, enabling session theft, administrative action takeover, and visitor-side script execution.
Affected Products
- NewsBoard Post and RSS Scroller WordPress plugin versions through 1.2.12
- WordPress sites with the newsboard plugin installed and active
- All WordPress installations running vulnerable plugin builds regardless of WordPress core version
Discovery Timeline
- 2025-04-09 - CVE-2025-31402 published to NVD
- 2026-04-23 - Last updated in NVD database
Technical Details for CVE-2025-31402
Vulnerability Analysis
The vulnerability combines two weaknesses in the NewsBoard Post and RSS Scroller plugin. State-changing endpoints lack CSRF token verification, and user-supplied input passed through those endpoints is not properly sanitized before being stored and rendered. An attacker chains the two flaws to plant persistent JavaScript without holding plugin credentials.
The attack requires user interaction. A logged-in WordPress administrator must visit an attacker-controlled page or click a crafted link while their session is active. Because the scope is changed (S:C in the CVSS vector), the injected script executes in the security context of the WordPress site and reaches users beyond the original victim.
The stored payload runs whenever a user loads a page that renders the compromised plugin output. This grants the attacker access to administrative functions, cookies accessible to JavaScript, and the ability to perform further actions on behalf of authenticated visitors.
Root Cause
The plugin does not validate WordPress nonces or verify request origin on configuration update handlers. Inputs accepted through these handlers are saved to the database and later echoed into HTML without contextual output encoding. The combination of missing anti-CSRF controls and missing output sanitization allows persistence of malicious markup.
Attack Vector
Exploitation occurs over the network and requires victim interaction. The attacker hosts a page containing an auto-submitting form or hidden request targeting the plugin's settings endpoint on the victim's WordPress site. When an authenticated administrator loads the attacker page, the browser sends the forged request with valid session cookies. The plugin processes the request as legitimate and stores the supplied script payload. Subsequent rendering executes the script in users' browsers. No exploit code is publicly tracked in NVD references for this CVE.
Detection Methods for CVE-2025-31402
Indicators of Compromise
- Unexpected <script> tags, event handlers, or obfuscated JavaScript stored in NewsBoard plugin options within the wp_options table
- WordPress access logs showing POST requests to NewsBoard plugin admin endpoints originating from external Referer headers
- New or modified administrator accounts and unexpected outbound requests from visitor browsers loading pages with the scroller widget
Detection Strategies
- Audit the wp_options rows associated with the newsboard plugin for HTML or JavaScript content that should be plain text
- Review web server and WordPress audit logs for plugin setting updates that lack a corresponding admin session in the wp-admin referrer chain
- Deploy a Web Application Firewall (WAF) rule that flags POST requests to plugin endpoints missing valid _wpnonce parameters
Monitoring Recommendations
- Enable file integrity monitoring on wp-content/plugins/newsboard/ to detect tampering and version drift
- Monitor browser-side Content Security Policy (CSP) violation reports for inline script execution on pages rendering the scroller
- Alert on administrative configuration changes outside approved maintenance windows
How to Mitigate CVE-2025-31402
Immediate Actions Required
- Deactivate the NewsBoard Post and RSS Scroller plugin until a patched release beyond 1.2.12 is installed
- Force password resets and invalidate active sessions for all WordPress administrator accounts
- Review the database for stored XSS payloads in plugin options and remove malicious entries
Patch Information
No fixed version is identified in the NVD entry at the time of publication. The vulnerability affects all releases through 1.2.12. Consult the Patchstack Vulnerability Report for the latest vendor remediation status before re-enabling the plugin.
Workarounds
- Remove the plugin entirely if business requirements do not justify continued use
- Restrict access to /wp-admin/ by IP allowlist to reduce CSRF exposure for administrators
- Implement a strict Content Security Policy that disallows inline scripts to limit stored XSS impact
- Require administrators to use isolated browser profiles when managing WordPress to reduce cross-origin request risk
# Temporarily disable the vulnerable plugin via WP-CLI
wp plugin deactivate newsboard
wp plugin status newsboard
# Search the options table for suspicious script content
wp db query "SELECT option_name FROM wp_options WHERE option_value LIKE '%<script%' OR option_value LIKE '%onerror=%';"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
