CVE-2026-24607: Travel Monster Auth Bypass Vulnerability

CVE-2026-24607 Overview

CVE-2026-24607 is a Missing Authorization vulnerability affecting the Travel Monster WordPress theme developed by wptravelengine. This Broken Access Control flaw allows unauthenticated attackers to exploit incorrectly configured access control security levels, potentially gaining access to sensitive information that should be restricted to authorized users only.

The vulnerability stems from inadequate authorization checks within the theme's functionality, classified as CWE-862 (Missing Authorization). Without proper access controls in place, attackers can bypass intended security restrictions and access protected resources or functionality.

Critical Impact

Unauthorized information disclosure through broken access control in WordPress sites using the Travel Monster theme, affecting confidentiality of site data.

Affected Products

• Travel Monster WordPress Theme versions up to and including 1.3.3
• WordPress installations using the vulnerable Travel Monster theme
• All Travel Monster theme configurations with default settings

Discovery Timeline

• 2026-01-23 - CVE CVE-2026-24607 published to NVD
• 2026-01-26 - Last updated in NVD database

Technical Details for CVE-2026-24607

Vulnerability Analysis

This vulnerability represents a classic Broken Access Control issue where the Travel Monster WordPress theme fails to implement proper authorization checks on certain functionality. The flaw enables network-based attacks that can be executed without authentication or user interaction, making it accessible to any remote attacker.

The vulnerability allows attackers to access protected resources or functionality without proper authorization verification. While the impact is limited to confidentiality (information disclosure) with no direct effect on integrity or availability, the ease of exploitation makes this a significant concern for WordPress site administrators.

Root Cause

The root cause of CVE-2026-24607 is the absence of proper authorization validation in the Travel Monster theme's code. When certain functions or endpoints are accessed, the theme fails to verify whether the requesting user has the appropriate permissions to perform the requested action or access the requested data.

This Missing Authorization (CWE-862) pattern occurs when software does not perform an authorization check when an actor attempts to access a resource or perform an action. The Travel Monster theme's flawed access control implementation allows security levels to be bypassed entirely.

Attack Vector

The attack can be carried out remotely over the network without requiring any authentication credentials or user interaction. An attacker can directly access vulnerable endpoints or functionality within the theme to exploit the misconfigured access controls.

The exploitation process involves identifying accessible endpoints within the Travel Monster theme that lack proper authorization checks, then sending crafted requests to these endpoints to access protected information or functionality that should require authentication.

For technical details on the vulnerability mechanism and exploitation patterns, refer to the Patchstack Vulnerability Advisory.

Detection Methods for CVE-2026-24607

Indicators of Compromise

• Unusual access patterns to Travel Monster theme endpoints from unauthenticated sources
• Unexpected requests to theme-specific AJAX handlers or REST endpoints without valid authentication tokens
• Log entries showing access to theme functionality that typically requires administrator privileges
• Anomalous data retrieval patterns indicating unauthorized information access

Detection Strategies

• Monitor WordPress access logs for suspicious requests targeting Travel Monster theme components
• Implement Web Application Firewall (WAF) rules to detect and block requests exploiting broken access control patterns
• Review WordPress audit logs for unauthorized access to theme settings or protected functionality
• Deploy SentinelOne Singularity to detect and alert on exploitation attempts targeting WordPress installations

Monitoring Recommendations

• Enable comprehensive logging for all WordPress theme-related requests and activities
• Configure alerts for access attempts to administrative theme functions from non-authenticated sessions
• Implement real-time monitoring for unusual patterns in theme endpoint access
• Regularly audit access logs for signs of reconnaissance or exploitation activity

How to Mitigate CVE-2026-24607

Immediate Actions Required

• Update the Travel Monster theme to a patched version that addresses the missing authorization vulnerability
• Review and audit current WordPress site access controls and user permissions
• Implement additional authentication layers using WordPress security plugins
• Temporarily restrict access to theme-specific functionality if an immediate update is not possible

Patch Information

Site administrators should update the Travel Monster theme to a version newer than 1.3.3 as soon as a patch becomes available. Check the Patchstack Vulnerability Advisory for the latest remediation guidance and patched version information.

Before applying updates, ensure you have a complete backup of your WordPress installation. Test the updated theme in a staging environment before deploying to production.

Workarounds

• Implement server-level access restrictions using .htaccess or nginx configuration to limit access to theme endpoints
• Deploy a Web Application Firewall (WAF) with rules to block unauthorized access attempts
• Use WordPress security plugins to add additional authorization layers to theme functionality
• Consider temporarily switching to an alternative theme until a patch is available

# Example .htaccess restriction for limiting access to WordPress theme endpoints
# Add to your WordPress .htaccess file

# Block direct access to theme PHP files
<FilesMatch "\.php$">
    <If "%{REQUEST_URI} =~ m#/wp-content/themes/travel-monster/#">
        Require all denied
    </If>
</FilesMatch>

# Allow only authenticated users to access theme AJAX handlers
<Files "admin-ajax.php">
    SetEnvIf Request_URI "travel-monster" TRAVEL_MONSTER_REQUEST
    Order deny,allow
    Deny from env=TRAVEL_MONSTER_REQUEST
</Files>