CVE-2026-24529 identifies a missing authorization vulnerability in Alejandro's Quick Restaurant Reservations software versions up to 1.6.7. The vulnerability arises from incorrectly configured access control security levels, allowing unauthenticated attackers to perform unauthorized actions that modify data integrity without affecting confidentiality or availability. The CVSS 3.1 base score is 5.3 (medium severity), with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), no confidentiality impact (C:N), integrity impact (I:L), and no availability impact (A:N). This means an attacker can remotely exploit the flaw without authentication or user interaction to alter reservation data or related information, potentially disrupting business operations. The vulnerability affects all versions up to 1.6.7, though exact version details are unspecified. No patches or known exploits are currently reported, but the risk remains due to the nature of missing authorization controls. The flaw is typical of access control misconfigurations where endpoints or functions lack proper permission checks, enabling unauthorized data manipulation. Organizations using this software in the hospitality sector should be aware of the risk and prepare to apply fixes once released.

For European organizations, especially those in the hospitality and restaurant management sectors using Alejandro's Quick Restaurant Reservations software, this vulnerability can lead to unauthorized modification of reservation data, potentially causing operational disruptions such as double bookings, cancellations, or fraudulent reservations. While confidentiality and availability are not directly impacted, the integrity compromise can damage customer trust and business reputation. In regulated environments, unauthorized data changes may also lead to compliance issues. The remote and unauthenticated nature of the exploit increases the risk of widespread abuse if the software is exposed to the internet without proper network protections. Given the medium severity, the impact is significant but not catastrophic, emphasizing the need for timely mitigation to prevent exploitation.

1. Implement strict access control validation on all endpoints handling reservation data to ensure proper authorization checks are enforced. 2. Monitor network traffic for unusual or unauthorized requests targeting the Quick Restaurant Reservations system, focusing on endpoints that modify data. 3. Restrict external network access to the reservation management interface using firewalls or VPNs to limit exposure. 4. Apply vendor patches or updates as soon as they become available to address the missing authorization flaw. 5. Conduct regular security audits and penetration testing focused on access control mechanisms within the application. 6. Educate IT and security teams about the vulnerability to ensure rapid detection and response to suspicious activity. 7. If patching is delayed, consider temporary compensating controls such as web application firewalls (WAF) rules to block unauthorized modification attempts.