CVE-2025-30608: WordPress SQL Backup CSRF Vulnerability

CVE-2025-30608 Overview

CVE-2025-30608 is a Cross-Site Request Forgery (CSRF) vulnerability in the WordPress SQL Backup plugin (wordpress-sql-backup) developed by Anthony. This vulnerability allows attackers to leverage CSRF to inject stored Cross-Site Scripting (XSS) payloads into the application. The chained CSRF-to-XSS attack significantly increases the potential impact, as successful exploitation could allow attackers to execute arbitrary JavaScript in the context of authenticated users' browsers.

Critical Impact

Attackers can chain CSRF with Stored XSS to compromise administrator sessions, steal credentials, or perform unauthorized actions on behalf of authenticated WordPress users.

Affected Products

• WordPress SQL Backup plugin versions through 3.5.2
• WordPress installations running vulnerable versions of the wordpress-sql-backup plugin

Discovery Timeline

• 2025-03-24 - CVE CVE-2025-30608 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-30608

Vulnerability Analysis

This vulnerability represents a dangerous combination of two distinct weakness types: Cross-Site Request Forgery (CWE-352) enabling Stored Cross-Site Scripting. The WordPress SQL Backup plugin fails to implement proper CSRF token validation on certain administrative actions. This missing protection allows attackers to craft malicious requests that, when triggered by an authenticated administrator, inject persistent XSS payloads into the plugin's storage or configuration.

The stored nature of the XSS component means that injected malicious scripts persist in the application and execute whenever subsequent users access the affected pages. This persistence dramatically amplifies the attack's reach compared to reflected XSS variants.

Root Cause

The root cause stems from inadequate implementation of WordPress nonce verification mechanisms in the plugin's form handling routines. The WordPress SQL Backup plugin processes administrative requests without properly validating that the request originated from a legitimate user action within the WordPress admin interface. Additionally, insufficient input sanitization and output encoding allow the injected content to be stored and later rendered as executable JavaScript.

Attack Vector

An attacker exploits this vulnerability by crafting a malicious webpage or email containing a hidden form or JavaScript that submits a forged request to the vulnerable plugin endpoint. When an authenticated WordPress administrator visits the attacker's page or clicks a malicious link, their browser automatically includes their session cookies with the forged request.

The attack typically proceeds as follows: the attacker identifies the vulnerable endpoint in the WordPress SQL Backup plugin that lacks CSRF protection. They then craft a request containing malicious XSS payload in a parameter that gets stored by the plugin. When an administrator unknowingly triggers this forged request, the XSS payload is persisted. Subsequently, when any user (including other administrators) accesses the affected functionality, the stored XSS executes in their browser context, potentially leading to session hijacking, credential theft, or further malicious actions.

Detection Methods for CVE-2025-30608

Indicators of Compromise

• Unexpected JavaScript code or HTML tags appearing in plugin configuration or database backup metadata
• Unusual administrator account activity or unauthorized configuration changes following administrator visits to external websites
• Browser console errors or unexpected script executions when accessing WordPress SQL Backup plugin pages
• Web server logs showing POST requests to plugin endpoints from external referrer domains

Detection Strategies

• Implement Content Security Policy (CSP) headers to detect and block unauthorized script execution attempts
• Monitor WordPress audit logs for configuration changes to the SQL Backup plugin that correlate with external site visits
• Deploy web application firewalls (WAF) with rules to detect common XSS payload patterns in request parameters
• Review plugin settings and database tables associated with wordpress-sql-backup for suspicious HTML or JavaScript content

Monitoring Recommendations

• Enable comprehensive logging of all administrative actions within WordPress
• Configure alerts for plugin configuration modifications outside of normal administrative workflows
• Implement real-time monitoring for JavaScript injection patterns in HTTP request bodies targeting plugin endpoints

How to Mitigate CVE-2025-30608

Immediate Actions Required

• Update the WordPress SQL Backup plugin to a patched version when available from the developer
• Temporarily disable the wordpress-sql-backup plugin if not critical to operations until a patch is released
• Audit existing plugin configuration and database entries for signs of injected malicious content
• Enforce strict Content Security Policy headers to mitigate stored XSS impact

Patch Information

Organizations should monitor the Patchstack Vulnerability Report for updates regarding patches from the plugin developer. Until an official patch is available, consider implementing the workarounds described below or using alternative backup solutions.

Workarounds

• Restrict access to the WordPress SQL Backup plugin administration pages to trusted IP addresses only
• Implement additional CSRF protection at the web server level using ModSecurity or similar WAF rules
• Train administrators to avoid visiting untrusted websites while logged into WordPress administrative sessions
• Consider using a different WordPress backup plugin that has been audited for security vulnerabilities

# Example: Restrict plugin access via .htaccess
# Add to WordPress wp-admin/.htaccess
<Files "admin.php">
    <If "%{QUERY_STRING} =~ /page=wordpress-sql-backup/">
        Require ip 192.168.1.0/24
        Require ip 10.0.0.0/8
    </If>
</Files>