CVE-2026-57705 in Event Tickets Plugin
Summary
by MITRE • 07/13/2026
Missing Authorization vulnerability in Nexcess Event Tickets event-tickets allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Event Tickets: from n/a through <= 5.28.5.
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Analysis
by VulDB Data Team • 07/13/2026
The missing authorization vulnerability in Nexcess Event Tickets event-tickets represents a critical access control flaw that undermines the security posture of affected systems. This vulnerability stems from incorrectly configured access control security levels that fail to properly validate user permissions before granting access to sensitive functionality. The issue exists within the event-tickets plugin and impacts versions ranging from the initial release through version 5.28.5, indicating a prolonged period during which the authorization mechanism was inadequately implemented.
The technical flaw manifests as a failure in the plugin's permission checking mechanisms, allowing unauthorized users to access administrative functions that should be restricted to authorized personnel only. This misconfiguration creates an attack surface where individuals without proper credentials can exploit the system to perform actions typically reserved for administrators or event organizers. The vulnerability operates at the application level, specifically targeting the authorization controls that govern user access to event management features within the WordPress ecosystem.
From an operational impact perspective, this missing authorization check enables attackers to potentially manipulate event data, modify ticket configurations, access sensitive user information, and perform administrative tasks without proper authentication. The consequences extend beyond simple unauthorized access, as the vulnerability could facilitate data breaches, service disruption, and potential escalation to full system compromise depending on the broader environment configuration. Organizations running affected versions face significant risk of unauthorized modifications to event listings and associated ticketing systems.
The vulnerability aligns with CWE-285, which addresses improper authorization issues in software systems, and corresponds to ATT&CK technique T1078 for valid accounts and privilege escalation. Security practitioners should prioritize immediate patching of affected installations to remediate this exposure. Additionally, organizations should implement network segmentation controls and monitor access logs for suspicious activities that might indicate exploitation attempts. The recommended mitigation strategy involves upgrading to the latest version of the event-tickets plugin where the authorization controls have been properly implemented and validated against industry standards for access control mechanisms.
Organizations must also conduct thorough security assessments of their WordPress environments to identify similar misconfigurations in other plugins or themes that might present analogous authorization vulnerabilities. Regular security audits should include verification of permission settings, access control implementations, and overall authentication frameworks to prevent recurrence of such issues. The incident underscores the critical importance of proper authorization implementation in web applications and highlights the potential for widespread impact when access controls fail to function as intended within content management systems.