CVE-2026-28188 in Hydra Booking Plugin
Summary
by MITRE • 08/13/2026
Unauthenticated Broken Access Control in Hydra Booking <= 1.2.2 versions.
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Analysis
by VulDB Data Team • 08/13/2026
Hydra Booking versions prior to 1.2.2 contain a critical unauthenticated broken access control vulnerability that fundamentally undermines the application's security model and authorization mechanisms. This weakness allows attackers to bypass authentication requirements and gain unauthorized access to protected resources, potentially leading to complete system compromise. The vulnerability stems from insufficient validation of user permissions and session management within the booking system's core components.
The technical flaw manifests as a failure in the application's access control enforcement mechanisms, where the system does not properly verify whether users possess adequate privileges before granting access to sensitive functionality or data. This broken access control condition typically maps to CWE-285, which specifically addresses insufficient authorization issues within software applications. Attackers can exploit this vulnerability by directly accessing protected endpoints or manipulating application parameters without proper authentication credentials, effectively circumventing the intended security controls.
The operational impact of this vulnerability is severe and multifaceted, as it enables unauthorized individuals to perform actions that should only be available to authenticated administrators or authorized users. An attacker could potentially view confidential booking data, modify existing reservations, create fraudulent bookings, or even delete critical system information. This access violation directly violates the principle of least privilege and can lead to data breaches, financial losses, and reputational damage for organizations relying on the affected booking platform.
Security practitioners should immediately implement mitigations including updating to Hydra Booking version 1.2.2 or later, which contains the necessary patches to address the access control flaws. Additional defensive measures include implementing robust input validation, strengthening session management protocols, and conducting thorough access control reviews. Organizations should also consider deploying web application firewalls and monitoring for suspicious access patterns that may indicate exploitation attempts. This vulnerability aligns with ATT&CK technique T1078 which covers valid accounts usage and privilege escalation through unauthorized access to systems. The remediation process must include comprehensive security testing to ensure all access control points function correctly and that proper authentication mechanisms are enforced throughout the application's attack surface.