CVE-2025-62106: WP-CRM System Auth Bypass Vulnerability

CVE-2025-62106 Overview

CVE-2025-62106 is a Missing Authorization vulnerability discovered in the WP-CRM System WordPress plugin developed by Mario Peshev. This vulnerability allows attackers to exploit incorrectly configured access control security levels, potentially enabling unauthorized access to CRM data and functionality within affected WordPress installations.

The vulnerability stems from broken access control mechanisms that fail to properly verify user authorization before granting access to protected resources and functions within the plugin.

Critical Impact

Unauthorized users may gain access to sensitive CRM data including customer information, contact details, and business communications stored within the WP-CRM System plugin.

Affected Products

• WP-CRM System WordPress Plugin versions up to and including 3.4.5
• WordPress installations running vulnerable WP-CRM System versions
• Websites using WP-CRM System for customer relationship management

Discovery Timeline

• 2026-01-22 - CVE CVE-2025-62106 published to NVD
• 2026-01-22 - Last updated in NVD database

Technical Details for CVE-2025-62106

Vulnerability Analysis

This vulnerability is classified under CWE-862 (Missing Authorization), which occurs when a software application does not perform an authorization check when an actor attempts to access a resource or perform an action. In the context of WP-CRM System, this means that certain plugin functions or data can be accessed without proper verification of user permissions.

WordPress plugins that handle sensitive customer data must implement robust authorization checks at every access point. When these checks are missing, low-privileged users or even unauthenticated attackers may be able to access administrative functions or view confidential CRM records that should be restricted.

Root Cause

The root cause of this vulnerability lies in the absence of proper authorization verification within the WP-CRM System plugin. The plugin fails to adequately check whether a user has the necessary permissions before allowing access to protected functionality or data. This is a fundamental security flaw that bypasses WordPress's capability system that is designed to restrict access based on user roles.

Attack Vector

An attacker can exploit this vulnerability by directly accessing plugin endpoints or functions that lack proper authorization checks. In WordPress environments, this typically involves crafting requests to AJAX handlers, REST API endpoints, or direct function calls that the plugin exposes without properly validating user capabilities.

The exploitation does not require sophisticated techniques - an attacker simply needs to identify the unprotected endpoints and make requests to them. Depending on the specific functions affected, this could allow:

• Viewing CRM contacts and customer data without authorization
• Modifying or deleting CRM records
• Accessing business-sensitive communications
• Exporting customer data

For detailed technical analysis and exploitation specifics, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2025-62106

Indicators of Compromise

• Unexpected access logs showing requests to WP-CRM System plugin endpoints from unauthorized users
• CRM data modifications or exports that cannot be attributed to authorized administrators
• Unusual patterns of requests to /wp-admin/admin-ajax.php with WP-CRM related actions
• Evidence of data exfiltration from the CRM database tables

Detection Strategies

• Monitor WordPress access logs for unauthorized requests to WP-CRM System AJAX handlers and endpoints
• Implement file integrity monitoring to detect unauthorized changes to plugin files
• Review user activity logs for CRM data access by users without appropriate permissions
• Deploy web application firewall (WAF) rules to detect and block suspicious plugin requests

Monitoring Recommendations

• Enable detailed logging for all WP-CRM System plugin activities and access attempts
• Configure alerts for bulk data exports or unusual patterns of CRM record access
• Implement database query monitoring for the CRM-related database tables
• Regularly audit user roles and capabilities to ensure principle of least privilege

How to Mitigate CVE-2025-62106

Immediate Actions Required

• Update WP-CRM System plugin to a patched version above 3.4.5 when available
• Review user access permissions and restrict CRM access to only necessary personnel
• Implement additional access control measures at the server or WAF level
• Audit CRM data for signs of unauthorized access or modification

Patch Information

Users should monitor the official WordPress plugin repository and the vendor's website for security updates addressing this vulnerability. Until a patch is available, implement the workarounds listed below to reduce exposure.

For the latest information on patches and updates, consult the Patchstack Vulnerability Report.

Workarounds

• Restrict access to the WordPress admin area by IP address for trusted administrators only
• Temporarily disable the WP-CRM System plugin if it is not essential until a patch is released
• Implement a Web Application Firewall (WAF) to filter malicious requests targeting the plugin
• Add server-level access controls to limit requests to sensitive plugin endpoints

# Configuration example - Restrict access to WordPress admin by IP (Apache .htaccess)
<Files admin-ajax.php>
    Order deny,allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from YOUR.TRUSTED.IP.ADDRESS
</Files>