CVE-2025-46458: Occupancyplan CSRF Vulnerability

CVE-2025-46458 Overview

CVE-2025-46458 is a chained Cross-Site Request Forgery (CSRF) vulnerability that enables SQL Injection attacks in the WordPress occupancyplan plugin developed by x000x. This vulnerability allows attackers to exploit the lack of proper CSRF protection to inject malicious SQL queries, potentially compromising the underlying database and gaining unauthorized access to sensitive information.

Critical Impact

Attackers can leverage CSRF to bypass security controls and execute arbitrary SQL queries against the WordPress database, potentially leading to data theft, data manipulation, or complete site compromise.

Affected Products

• WordPress occupancyplan plugin versions up to and including 1.0.3.0
• All WordPress installations running vulnerable versions of occupancyplan

Discovery Timeline

• 2025-05-23 - CVE CVE-2025-46458 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-46458

Vulnerability Analysis

This vulnerability represents a dangerous combination of two distinct attack types: Cross-Site Request Forgery (CSRF) and SQL Injection. The occupancyplan plugin fails to implement proper CSRF token validation on critical endpoints that process database queries. When combined with insufficient input sanitization, this creates a pathway for attackers to execute arbitrary SQL commands through specially crafted requests.

The chained nature of this vulnerability makes it particularly concerning. An attacker can craft a malicious webpage or link that, when visited by an authenticated WordPress administrator, will automatically submit forged requests to the vulnerable plugin endpoints. These requests can contain SQL injection payloads that will be executed with the privileges of the victim user's database connection.

Root Cause

The root cause of this vulnerability lies in two fundamental security failures:

1. Missing CSRF Protection (CWE-352): The plugin does not implement WordPress nonce verification on form submissions and AJAX endpoints that interact with the database. This allows external websites to submit requests on behalf of authenticated users.

2. Inadequate Input Sanitization: User-supplied input is not properly escaped or parameterized before being incorporated into SQL queries, enabling SQL injection when the CSRF protection is bypassed.

Attack Vector

The attack vector for CVE-2025-46458 involves social engineering combined with technical exploitation. An attacker must first convince an authenticated WordPress administrator to visit a malicious webpage. This page contains hidden forms or JavaScript that automatically submits requests to the vulnerable occupancyplan plugin endpoints.

Because the plugin lacks CSRF token verification, these forged requests are processed as if they were legitimate. The attacker can embed SQL injection payloads within these requests, which are then executed against the WordPress database. This can lead to unauthorized data extraction, modification of database records, or in severe cases, complete database compromise.

The attack does not require the attacker to have any prior authentication to the WordPress site—they only need to trick an authenticated admin into visiting their malicious page while logged in.

Detection Methods for CVE-2025-46458

Indicators of Compromise

• Unusual database queries or errors in WordPress debug logs originating from occupancyplan plugin functions
• Unexpected modifications to database tables used by the occupancyplan plugin
• Access logs showing requests to occupancyplan endpoints from external referrers
• Evidence of data exfiltration through SQL injection techniques such as time-based or error-based extraction patterns

Detection Strategies

• Review web server access logs for suspicious requests to occupancyplan plugin endpoints with unusual parameters
• Monitor WordPress database query logs for anomalous SQL patterns including UNION SELECT, OR 1=1, or time-based injection attempts
• Implement Web Application Firewall (WAF) rules to detect and block CSRF and SQL injection attack patterns
• Deploy SentinelOne Singularity to detect post-exploitation activities and anomalous database access patterns

Monitoring Recommendations

• Enable WordPress debug logging temporarily to capture plugin-related database errors
• Configure alerts for any cross-origin requests to WordPress admin endpoints
• Monitor for unexpected outbound connections that could indicate data exfiltration
• Regularly audit database integrity for unauthorized modifications

How to Mitigate CVE-2025-46458

Immediate Actions Required

• Disable or remove the occupancyplan plugin immediately if it is not critical to site operations
• Review WordPress user accounts for any unauthorized changes or new administrative accounts
• Audit database logs for signs of SQL injection exploitation
• Implement additional WAF rules to block common CSRF and SQL injection patterns targeting WordPress plugins

Patch Information

As of the last update, the vulnerability affects occupancyplan plugin versions through 1.0.3.0. Users should monitor the Patchstack Vulnerability Report for updates on patch availability. Contact the plugin developer (x000x) for information about security updates.

Workarounds

• Remove the occupancyplan plugin entirely until a patched version is released
• Restrict access to WordPress admin panel by IP address whitelist
• Implement a Web Application Firewall with CSRF and SQL injection protection rules
• Use security plugins that add CSRF protection to vulnerable plugins
• Ensure administrators are educated about risks of clicking unknown links while logged into WordPress

# Configuration example - Disable plugin via WP-CLI
wp plugin deactivate occupancyplan

# Alternatively, rename plugin folder to disable
mv wp-content/plugins/occupancyplan wp-content/plugins/occupancyplan.disabled