CVE-2026-28159 in Service Finder Booking Plugin
Summary
by MITRE • 08/13/2026
Subscriber Broken Access Control in Service Finder Booking <= 6.2 versions.
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Analysis
by VulDB Data Team • 08/13/2026
The vulnerability identified as broken access control in Service Finder Booking plugin versions 6.2 and earlier represents a critical security flaw that allows unauthorized users to bypass authentication mechanisms and gain elevated privileges within the WordPress environment. This weakness stems from improper implementation of access control checks within the plugin's core functionality, creating pathways for malicious actors to exploit administrative capabilities without proper authorization. The vulnerability manifests when the plugin fails to adequately verify user permissions before executing sensitive operations, enabling attackers to perform actions typically restricted to administrators or authorized personnel.
The technical implementation flaw involves insufficient input validation and privilege escalation mechanisms within the service finder booking system's backend processes. Attackers can manipulate request parameters or exploit weak session management to assume administrative roles within the plugin's interface. This type of vulnerability aligns with CWE-284 which specifically addresses improper access control in software systems, where the application fails to properly enforce authorization checks. The flaw typically occurs when the application does not validate whether a user has sufficient privileges before allowing access to sensitive functions or data, creating opportunities for privilege escalation attacks.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it can lead to complete compromise of the WordPress installation hosting the vulnerable plugin. Attackers who successfully exploit this broken access control can modify booking configurations, manipulate customer data, insert malicious content, and potentially establish persistent backdoors within the system. The attack surface is particularly concerning given that service finder booking plugins often handle sensitive customer information including personal details, contact information, and payment-related data. This vulnerability directly maps to several ATT&CK techniques including privilege escalation through access control bypass and credential access via exploitation of weak session management.
Mitigation strategies should focus on immediate plugin updates to versions that address the access control implementation flaws, along with comprehensive security auditing of all installed plugins and themes. System administrators must implement proper network segmentation and monitor for unauthorized access attempts within the WordPress environment. Additional protective measures include implementing strong authentication mechanisms, regular security scanning of web applications, and maintaining up-to-date security patches across the entire WordPress ecosystem. Organizations should also consider implementing web application firewalls to detect and prevent exploitation attempts targeting known access control vulnerabilities in content management systems.