CVE-2025-11030: Employee Management System Auth Bypass

CVE-2025-11030 Overview

A vulnerability has been identified in Tutorials-Website Employee Management System affecting versions up to commit 611887d8f8375271ce8abc704507d46340837a60. The vulnerability exists in the /admin/all-applied-leave.php file within the HTTP Request Handler component, resulting in improper authorization that allows unauthorized access to administrative functions.

Critical Impact

Unauthorized remote attackers can potentially access and manipulate employee leave request data through the administrative interface without proper authorization checks, leading to confidentiality, integrity, and availability impacts.

Affected Products

• Tutorials-Website Employee Management System (up to commit 611887d8f8375271ce8abc704507d46340837a60)
• HTTP Request Handler component (/admin/all-applied-leave.php)

Discovery Timeline

• 2025-09-26 - CVE-2025-11030 published to NVD
• 2026-04-29 - Last updated in NVD database

Technical Details for CVE-2025-11030

Vulnerability Analysis

This vulnerability is classified as CWE-266 (Incorrect Privilege Assignment), which occurs when the application fails to properly enforce authorization checks on privileged functionality. The affected endpoint /admin/all-applied-leave.php handles employee leave request data but does not adequately verify that the requesting user has administrative privileges before granting access.

The improper authorization vulnerability allows remote attackers to bypass intended access restrictions and interact with administrative functions. Since the exploit has been made public, the attack surface is elevated despite the medium severity classification. Organizations using this Employee Management System should treat this as a priority security concern due to the potential for unauthorized data access and manipulation.

Root Cause

The root cause of this vulnerability lies in the absence or inadequacy of authorization validation within the HTTP Request Handler component. The /admin/all-applied-leave.php endpoint fails to properly verify user privileges before processing requests, allowing unauthenticated or low-privileged users to access functionality intended only for administrators. This represents a classic broken access control pattern where security controls are either missing or improperly implemented at the application layer.

Attack Vector

The attack can be performed remotely over the network without requiring any prior authentication or user interaction. An attacker can directly request the vulnerable endpoint /admin/all-applied-leave.php via HTTP, bypassing the intended authentication and authorization mechanisms. The low attack complexity combined with network accessibility makes this vulnerability particularly concerning for internet-facing deployments.

The vulnerability can be exploited by crafting direct HTTP requests to the administrative endpoint. Since no authentication is properly enforced, attackers can access, view, and potentially modify employee leave request data without legitimate credentials. Additional technical details and proof-of-concept information can be found in the VulDB entry #325969.

Detection Methods for CVE-2025-11030

Indicators of Compromise

• Unusual HTTP requests to /admin/all-applied-leave.php from external IP addresses without prior authentication
• Access logs showing direct navigation to administrative endpoints bypassing normal login workflows
• Unexpected modifications to employee leave request records without corresponding admin session activity
• High volume of requests to the vulnerable endpoint from a single source

Detection Strategies

• Implement web application firewall (WAF) rules to monitor and alert on direct access attempts to /admin/ paths without authenticated sessions
• Review web server access logs for requests to /admin/all-applied-leave.php that lack session cookies or authentication tokens
• Deploy intrusion detection signatures to identify reconnaissance or exploitation attempts targeting the Employee Management System
• Enable detailed logging for all administrative endpoint access and correlate with authentication events

Monitoring Recommendations

• Configure real-time alerting for any access to administrative paths from unauthenticated sessions
• Monitor for anomalous patterns in employee leave data modifications that don't correlate with legitimate administrative activity
• Implement session monitoring to detect potential session fixation or hijacking attempts
• Regularly audit access logs for the /admin/ directory structure to identify unauthorized access attempts

How to Mitigate CVE-2025-11030

Immediate Actions Required

• Restrict access to the /admin/ directory through network-level controls (firewall rules, IP whitelisting) until a patch is available
• Implement additional authentication checks at the web server level using .htaccess or equivalent mechanisms
• Review and audit all recent access to the /admin/all-applied-leave.php endpoint for signs of exploitation
• Consider temporarily disabling the affected endpoint if business operations permit

Patch Information

This product uses a rolling release system for continuous delivery, and specific version information for affected or updated releases has not been disclosed by the vendor. Organizations should monitor the project repository for commits addressing this authorization bypass. Refer to the VulDB submission #657210 for additional tracking information.

Workarounds

• Implement server-side access controls restricting administrative endpoints to trusted IP ranges only
• Add authentication middleware or wrapper scripts to enforce session validation before processing requests to /admin/all-applied-leave.php
• Deploy a reverse proxy with authentication requirements in front of the application
• Consider implementing rate limiting on administrative endpoints to slow potential exploitation attempts

# Example Apache .htaccess configuration to restrict admin access
<Directory "/var/www/html/admin">
    AuthType Basic
    AuthName "Restricted Admin Area"
    AuthUserFile /etc/apache2/.htpasswd
    Require valid-user
    
    # Optional: IP-based restrictions
    # Require ip 10.0.0.0/8 192.168.0.0/16
</Directory>