CVE-2025-67954: Salon Booking System Data Exposure Flaw

CVE-2025-67954 Overview

CVE-2025-67954 is a Sensitive Data Exposure vulnerability in the Dimitri Grassi Salon booking system WordPress plugin (salon-booking-system). This vulnerability allows unauthorized actors to retrieve embedded sensitive data from the system, potentially exposing confidential information to malicious parties.

The vulnerability is classified under CWE-497 (Exposure of Sensitive System Information to an Unauthorized Control Sphere), indicating that the plugin improperly exposes system information that should be restricted to authorized users only.

Critical Impact

Unauthorized attackers can access sensitive system information embedded within the Salon booking system plugin, potentially exposing customer data, booking details, and internal system configuration.

Affected Products

• Salon booking system WordPress plugin versions through 10.30.3
• WordPress installations running vulnerable versions of the salon-booking-system plugin

Discovery Timeline

• 2026-01-22 - CVE CVE-2025-67954 published to NVD
• 2026-01-22 - Last updated in NVD database

Technical Details for CVE-2025-67954

Vulnerability Analysis

This vulnerability falls under the category of Information Disclosure, specifically Sensitive Data Exposure. The Salon booking system plugin for WordPress contains a flaw that allows unauthorized retrieval of embedded sensitive data. This type of vulnerability typically occurs when an application fails to properly restrict access to data that should only be visible to authenticated or authorized users.

The vulnerability enables attackers to extract sensitive system information that is embedded within the plugin's data structures or responses. This could include customer personal information, booking schedules, business configuration details, or other sensitive data stored by the salon management system.

Root Cause

The root cause stems from improper access control mechanisms within the Salon booking system plugin. The application fails to adequately validate authorization before exposing sensitive system information, allowing unauthorized control spheres to access data that should be protected. This is a common issue in WordPress plugins where developers may not properly implement nonce verification, capability checks, or other WordPress security mechanisms.

Attack Vector

The attack vector for this vulnerability involves an unauthorized actor accessing endpoints or functionality within the Salon booking system plugin that inadvertently expose sensitive information. Since this is a WordPress plugin vulnerability, the attack likely occurs through:

1. Direct access to plugin endpoints that lack proper authorization checks
2. Manipulation of requests to retrieve data that should be restricted
3. Exploitation of API endpoints or AJAX handlers that return sensitive information without proper validation

Attackers can leverage this vulnerability to retrieve embedded sensitive data without requiring authentication, potentially gaining access to customer information, business data, or system configuration details stored by the plugin.

Detection Methods for CVE-2025-67954

Indicators of Compromise

• Unusual access patterns to WordPress plugin endpoints, particularly those associated with the salon-booking-system plugin
• Unexpected data retrieval requests from unauthenticated sources
• Access logs showing repeated requests to plugin-specific URLs from unknown IP addresses
• Anomalous API or AJAX request patterns targeting the salon booking functionality

Detection Strategies

• Monitor WordPress access logs for suspicious requests to /wp-content/plugins/salon-booking-system/ paths
• Implement Web Application Firewall (WAF) rules to detect and block unauthorized data retrieval attempts
• Review application logs for patterns indicative of information enumeration or data harvesting
• Deploy endpoint detection solutions to identify unauthorized access to plugin functionality

Monitoring Recommendations

• Enable detailed WordPress debug logging to capture unauthorized access attempts
• Configure alerting for unusual traffic patterns to the Salon booking system plugin endpoints
• Implement real-time monitoring of API responses for potential data leakage
• Regularly audit access logs for signs of exploitation attempts

How to Mitigate CVE-2025-67954

Immediate Actions Required

• Update the Salon booking system plugin to a patched version as soon as one becomes available
• Review and restrict access to the WordPress admin panel and plugin functionality
• Implement additional access controls at the web server level to limit exposure
• Audit existing data that may have been exposed and assess potential impact
• Consider temporarily disabling the plugin if sensitive data exposure risk is critical to your organization

Patch Information

Site administrators should monitor the official WordPress plugin repository and the Patchstack Vulnerability Report for updates regarding a security patch. The vulnerability affects all versions through 10.30.3, so any update addressing this issue should be applied immediately upon release.

Workarounds

• Implement Web Application Firewall rules to restrict access to sensitive plugin endpoints
• Add server-level access controls (such as .htaccess rules) to limit access to plugin directories
• Use WordPress security plugins to add additional authentication layers to sensitive functionality
• Consider implementing IP-based access restrictions for administrative functions
• Regularly backup data and monitor for unauthorized access until a patch is available

# Example .htaccess restriction for salon-booking-system plugin directory
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{REQUEST_URI} ^/wp-content/plugins/salon-booking-system/
    RewriteCond %{REMOTE_ADDR} !^192\.168\.1\.
    RewriteRule ^(.*)$ - [F,L]
</IfModule>