CVE-2025-67915: Timetics Authentication Bypass Vulnerability

CVE-2025-67915 Overview

CVE-2025-67915 is a critical Authentication Bypass vulnerability affecting the Arraytics Timetics WordPress plugin. This vulnerability allows attackers to exploit an alternate path or channel to bypass normal authentication mechanisms, enabling complete authentication abuse. The flaw permits unauthenticated remote attackers to gain unauthorized access to protected functionality without providing valid credentials.

Critical Impact

This authentication bypass vulnerability enables attackers to completely circumvent authentication controls in the Timetics WordPress plugin, potentially leading to unauthorized access to administrative functions, data theft, and full site compromise.

Affected Products

• Arraytics Timetics WordPress Plugin versions up to and including 1.0.46
• WordPress installations running vulnerable Timetics plugin versions
• All environments utilizing the affected Timetics booking and appointment functionality

Discovery Timeline

• 2026-01-08 - CVE CVE-2025-67915 published to NVD
• 2026-01-08 - Last updated in NVD database

Technical Details for CVE-2025-67915

Vulnerability Analysis

This vulnerability is classified under CWE-288 (Authentication Bypass Using an Alternate Path or Channel). The Timetics plugin fails to properly enforce authentication checks across all access paths to protected functionality. Attackers can leverage an alternate channel that does not require standard authentication, effectively bypassing the intended security controls.

The vulnerability allows network-based exploitation without requiring any privileges or user interaction. Successful exploitation can result in complete compromise of confidentiality, integrity, and availability of the affected WordPress installation. Attackers could potentially access, modify, or delete booking data, user information, and plugin configurations.

Root Cause

The root cause lies in broken authentication implementation within the Timetics plugin. The plugin exposes certain endpoints or functionality through alternate paths that fail to validate user authentication state. This architectural flaw allows attackers to access protected resources by circumventing the primary authentication flow through these unprotected alternate channels.

Attack Vector

The attack vector is network-based, requiring no authentication, privileges, or user interaction. An attacker can remotely exploit this vulnerability by:

1. Identifying the alternate authentication path exposed by the vulnerable Timetics plugin
2. Crafting requests that utilize this alternate channel to bypass authentication checks
3. Accessing protected functionality or administrative features without valid credentials
4. Potentially escalating access to perform unauthorized actions on the WordPress site

The vulnerability mechanism involves bypassing standard authentication controls through an improperly secured alternate access path. Technical details are available in the Patchstack Vulnerability Database Entry.

Detection Methods for CVE-2025-67915

Indicators of Compromise

• Unusual authentication events or access to protected Timetics plugin endpoints without corresponding login events
• Anomalous API requests to Timetics plugin endpoints from unauthenticated sessions
• Unexpected modifications to booking data, appointments, or plugin configurations
• Access logs showing requests to alternate authentication paths with successful responses

Detection Strategies

• Monitor WordPress access logs for requests to Timetics plugin endpoints that bypass normal authentication flows
• Implement web application firewall (WAF) rules to detect authentication bypass attempts
• Review audit logs for administrative actions performed without corresponding authenticated sessions
• Deploy endpoint detection solutions to identify exploitation attempts targeting WordPress plugins

Monitoring Recommendations

• Enable detailed logging for the Timetics plugin and WordPress authentication events
• Configure alerting for unauthorized access attempts to booking and appointment management features
• Establish baseline behavior for Timetics plugin access patterns to identify anomalies
• Implement real-time monitoring for changes to plugin configurations and user data

How to Mitigate CVE-2025-67915

Immediate Actions Required

• Update the Timetics WordPress plugin to the latest patched version immediately
• Review WordPress access logs for signs of exploitation or unauthorized access
• Audit any changes made to booking data, user accounts, or plugin configurations
• Consider temporarily disabling the Timetics plugin if an immediate update is not possible

Patch Information

Organizations should update the Arraytics Timetics plugin to a version newer than 1.0.46 that addresses this authentication bypass vulnerability. Consult the Patchstack Vulnerability Database Entry for the latest patch information and remediation guidance.

Workarounds

• Implement web application firewall (WAF) rules to restrict access to Timetics plugin endpoints
• Apply IP-based access controls to limit who can reach the vulnerable plugin functionality
• Temporarily disable the Timetics plugin until a patch can be applied
• Enable additional authentication layers for WordPress administrative access

# WordPress plugin update via WP-CLI
wp plugin update timetics --path=/var/www/html/wordpress

# Verify current plugin version
wp plugin list --name=timetics --path=/var/www/html/wordpress

# If immediate patching is not possible, deactivate the plugin temporarily
wp plugin deactivate timetics --path=/var/www/html/wordpress