CVE-2025-68027: Hydra Booking Privilege Escalation Flaw

CVE-2025-68027 Overview

CVE-2025-68027 is an Incorrect Privilege Assignment vulnerability (CWE-266) affecting the Themefic Hydra Booking plugin for WordPress. This security flaw enables attackers to perform privilege escalation attacks, potentially allowing unauthorized users to gain elevated permissions within a WordPress installation.

The vulnerability stems from improper handling of privilege assignments within the hydra-booking plugin, which is commonly used for managing booking and appointment functionality on WordPress websites. Exploitation of this vulnerability could allow an attacker to escalate their privileges from a low-privileged user to a higher-privileged role such as administrator.

Critical Impact

Successful exploitation allows attackers to escalate privileges within WordPress installations running vulnerable versions of Hydra Booking, potentially leading to complete site compromise.

Affected Products

• Themefic Hydra Booking plugin for WordPress versions through 1.1.32
• WordPress installations with the hydra-booking plugin installed
• Any WordPress site utilizing the affected booking functionality

Discovery Timeline

• 2026-01-22 - CVE CVE-2025-68027 published to NVD
• 2026-01-22 - Last updated in NVD database

Technical Details for CVE-2025-68027

Vulnerability Analysis

This vulnerability is classified as CWE-266 (Incorrect Privilege Assignment), a weakness where a product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor. In the context of WordPress plugins, this typically manifests when user role checks are improperly implemented or when privilege-granting functions can be invoked by unauthorized users.

The Hydra Booking plugin fails to properly validate and restrict privilege assignment operations, allowing attackers to manipulate the privilege assignment mechanism. This can result in unauthorized elevation of user privileges within the WordPress environment.

Root Cause

The root cause of CVE-2025-68027 lies in insufficient access control validation within the Hydra Booking plugin's privilege assignment functionality. The plugin does not properly verify that the requesting user has the appropriate permissions before allowing privilege modifications.

In WordPress environments, secure plugins must implement capability checks using functions like current_user_can() before performing sensitive operations. When these checks are missing or improperly implemented, attackers can exploit the gap to assign elevated privileges to their accounts.

Attack Vector

The attack vector for this privilege escalation vulnerability involves an authenticated user exploiting the flawed privilege assignment mechanism within the Hydra Booking plugin.

An attacker with a low-privileged account (such as subscriber or contributor) could craft specific requests to the vulnerable functionality, bypassing intended access controls to elevate their role to administrator or another high-privileged user type. This could be achieved through direct API calls, form submissions, or manipulation of plugin-specific endpoints that handle user role assignments without proper authorization checks.

For detailed technical information about this vulnerability, refer to the Patchstack Hydra Booking Vulnerability advisory.

Detection Methods for CVE-2025-68027

Indicators of Compromise

• Unexpected user role changes in WordPress user database, particularly escalations to administrator roles
• Unusual API or form requests targeting Hydra Booking plugin endpoints related to user management
• New administrator accounts appearing without legitimate creation workflows
• Modified user capabilities or meta values associated with Hydra Booking functionality

Detection Strategies

• Monitor WordPress user role modification events through security audit logging plugins
• Implement Web Application Firewall (WAF) rules to detect suspicious requests to Hydra Booking plugin endpoints
• Review WordPress wp_usermeta table for unexpected capability changes
• Enable detailed logging for authentication and authorization events on affected WordPress installations

Monitoring Recommendations

• Deploy real-time monitoring for user privilege changes within WordPress environments
• Configure alerts for any user role escalation events, especially those not initiated by existing administrators
• Regularly audit user accounts and their assigned roles for anomalies
• Monitor HTTP request logs for unusual patterns targeting /wp-admin/, /wp-json/, or plugin-specific endpoints

How to Mitigate CVE-2025-68027

Immediate Actions Required

• Update the Hydra Booking plugin to a version newer than 1.1.32 that contains the security fix
• Audit all WordPress user accounts to verify appropriate role assignments
• Review WordPress activity logs for signs of past exploitation
• Consider temporarily disabling the Hydra Booking plugin if an immediate update is not available

Patch Information

Organizations should update the Themefic Hydra Booking plugin to the latest available version that addresses this vulnerability. Detailed patch information is available through the Patchstack advisory.

Administrators should verify the installed version through the WordPress plugin management interface and apply updates through the standard WordPress update mechanism or by manually downloading the patched version from the official WordPress plugin repository.

Workarounds

• Restrict user registration to only trusted users until the patch is applied
• Implement additional access control using a WordPress security plugin to limit plugin functionality
• Use a Web Application Firewall (WAF) to filter potentially malicious requests targeting the Hydra Booking plugin
• Temporarily disable the Hydra Booking plugin if booking functionality is not immediately critical

# Verify installed Hydra Booking plugin version
wp plugin list --name=hydra-booking --fields=name,version,status

# Update to the latest patched version
wp plugin update hydra-booking

# Audit current user roles for anomalies
wp user list --fields=ID,user_login,roles