CVE-2026-97079 in Booking Plugin
Summary
by MITRE • 09/30/2026
Subscriber Insecure Direct Object References (IDOR) in Webba Booking <= 6.5.0 versions.
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Analysis
by VulDB Data Team • 09/30/2026
The vulnerability identified as an insecure direct object reference within the Webba Booking plugin, affecting versions up to and including 6.5.0, represents a critical authentication bypass mechanism that allows unauthorized access to sensitive user data. This flaw stems from a fundamental failure in server-side input validation where the application relies on client-supplied identifiers, such as numeric IDs or session tokens passed via URL parameters or POST requests, to retrieve specific subscriber records without verifying whether the authenticated user has legitimate ownership of those resources. In secure software design, access control checks must be performed based on the relationship between the current user's identity and the requested resource, rather than trusting opaque identifiers provided by the client side. By failing to enforce these object-level permissions, the application exposes a classic privilege escalation vector that compromises the confidentiality and integrity of subscriber information.
From a technical perspective, this vulnerability exploits the lack of indirect reference mapping or strict authorization checks during data retrieval operations. When an attacker constructs a request with a modified identifier corresponding to another user's subscription details, booking history, or personal contact information, the server processes the query without validating if that resource belongs to the currently logged-in session. This behavior aligns directly with CWE-639, which categorizes issues related to authorization bypasses through direct object references. The absence of proper access control mechanisms means that any authenticated user can iterate through sequential IDs or manipulate existing parameters to enumerate and extract data belonging to other subscribers, effectively turning a standard booking management interface into an information disclosure engine accessible to malicious actors with valid credentials.
The operational impact of this vulnerability is severe, particularly for platforms handling personal identifiable information in compliance with regulations such as GDPR or CCPA. Attackers can systematically scrape subscriber databases by iterating through ID ranges, leading to large-scale data breaches that expose names, email addresses, phone numbers, and potentially payment details if stored within the same records. Beyond mere data theft, this flaw undermines trust in the booking platform's security posture and exposes organizations to significant legal liabilities and reputational damage. Furthermore, because the vulnerability exists at the application logic layer rather than a network or infrastructure level, it remains undetected by traditional perimeter defenses like firewalls or intrusion detection systems until active exploitation is observed through anomalous data access patterns in server logs.
Mitigation strategies must focus on implementing robust authorization checks within the application codebase immediately upon upgrading past version 6.5.0. Developers should refactor the affected endpoints to ensure that every request for subscriber data includes a verification step confirming that the resource ID matches the owner's account ID associated with the active session token or user profile. Implementing role-based access control and enforcing strict object-level permissions will prevent unauthorized enumeration of records. Additionally, organizations should conduct thorough code reviews focusing on all API endpoints related to user management and booking retrieval to identify similar patterns elsewhere in the application stack. Regular security testing using dynamic analysis tools can help detect these logic flaws before they are exploited in production environments, ensuring that access control policies are consistently enforced across all data interaction points.