CVE-2025-67993: Atarim Auth Bypass Vulnerability

CVE-2025-67993 Overview

CVE-2025-67993 is a Missing Authorization vulnerability (CWE-862) affecting the Atarim Visual Collaboration WordPress plugin developed by Vito Peleg. This broken access control flaw allows attackers to exploit incorrectly configured access control security levels, potentially enabling unauthorized actions within the affected WordPress installations. The vulnerability stems from missing authorization checks that should validate user permissions before allowing certain operations.

Critical Impact

Unauthorized users may be able to bypass access controls and perform actions without proper authorization, affecting both data integrity and system availability.

Affected Products

• Atarim Visual Collaboration WordPress Plugin versions through 4.2.1
• WordPress installations running vulnerable Atarim plugin versions

Discovery Timeline

• 2026-02-20 - CVE CVE-2025-67993 published to NVD
• 2026-02-24 - Last updated in NVD database

Technical Details for CVE-2025-67993

Vulnerability Analysis

This vulnerability is classified as a Missing Authorization flaw (CWE-862), a type of broken access control that occurs when an application fails to properly verify whether a user has the appropriate permissions to perform a requested action. In the context of the Atarim Visual Collaboration plugin, the vulnerability allows attackers to exploit incorrectly configured access control security levels without requiring authentication.

The attack can be conducted remotely over the network with low complexity, requiring no privileges or user interaction. While the vulnerability does not directly expose confidential data, it can compromise both the integrity and availability of the affected system at low impact levels.

Root Cause

The root cause of CVE-2025-67993 lies in the absence of proper authorization checks within the Atarim Visual Collaboration plugin. The plugin fails to validate whether the requesting user has sufficient privileges before processing certain operations. This missing authorization mechanism allows unauthenticated attackers to access functionality that should be restricted to authorized users only.

Attack Vector

The attack vector for this vulnerability is network-based, meaning attackers can exploit it remotely without requiring local access to the target system. The exploitation process involves:

1. Identifying a WordPress installation running a vulnerable version of the Atarim plugin (version 4.2.1 or earlier)
2. Sending crafted requests to plugin endpoints that lack proper authorization checks
3. Bypassing access control mechanisms to perform unauthorized actions

The vulnerability mechanism exploits the missing authorization validation in the plugin's request handling. When requests reach certain plugin functions, the code fails to verify user permissions, allowing any requester—including unauthenticated users—to execute those operations. For detailed technical information, refer to the Patchstack WordPress Vulnerability Advisory.

Detection Methods for CVE-2025-67993

Indicators of Compromise

• Unexpected or unauthorized changes to Atarim plugin settings or configurations
• Unusual HTTP requests to Atarim plugin endpoints from unauthenticated sources
• Anomalous activity patterns in WordPress access logs related to the atarim-visual-collaboration plugin directory
• Unexplained modifications to visual collaboration data or comments

Detection Strategies

• Monitor WordPress access logs for suspicious requests targeting /wp-content/plugins/atarim-visual-collaboration/ endpoints
• Implement Web Application Firewall (WAF) rules to detect and block unauthorized access attempts to plugin functionality
• Deploy endpoint detection solutions capable of identifying broken access control exploitation patterns
• Conduct regular security audits of WordPress plugin configurations and access controls

Monitoring Recommendations

• Enable verbose logging for WordPress and monitor for failed authorization attempts
• Set up alerts for unusual request patterns targeting the Atarim plugin endpoints
• Regularly review WordPress user activity logs for signs of privilege abuse or unauthorized actions
• Implement real-time monitoring of plugin file integrity to detect unauthorized modifications

How to Mitigate CVE-2025-67993

Immediate Actions Required

• Identify all WordPress installations running the Atarim Visual Collaboration plugin version 4.2.1 or earlier
• Consider temporarily disabling the Atarim plugin until a patched version is available
• Review WordPress access logs for any signs of exploitation
• Implement additional access controls at the web server level to restrict plugin endpoint access
• Apply the principle of least privilege to all WordPress user accounts

Patch Information

At the time of publication, organizations should monitor the official Atarim plugin page and the Patchstack WordPress Vulnerability Advisory for updates regarding a security patch. Update to the latest available version once a fix is released by the vendor.

Workarounds

• Temporarily deactivate the Atarim Visual Collaboration plugin if it is not critical to operations
• Implement Web Application Firewall (WAF) rules to block suspicious requests to vulnerable endpoints
• Restrict access to WordPress admin and plugin directories via server-level IP whitelisting
• Enable WordPress security plugins that provide additional access control monitoring

# Example: Restrict access to plugin directory via .htaccess
# Add to WordPress root .htaccess or wp-content/plugins/.htaccess
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{REQUEST_URI} ^/wp-content/plugins/atarim-visual-collaboration/ [NC]
    RewriteCond %{REMOTE_ADDR} !^192\.168\.1\. 
    RewriteRule .* - [F,L]
</IfModule>