CVE-2025-0959 in Eventer Plugin
Summary
by MITRE • 03/07/2025
The Eventer - WordPress Event & Booking Manager Plugin plugin for WordPress is vulnerable to SQL Injection via the reg_id parameter in all versions up to, and including, 3.9.9.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
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Analysis
by VulDB Data Team • 03/07/2025
The vulnerability identified as CVE-2025-0959 affects the Eventer WordPress plugin, a popular event and booking management solution that has been widely adopted across WordPress installations. This plugin facilitates event creation, registration management, and booking systems for websites ranging from small businesses to large organizations. The vulnerability resides within the plugin's handling of user input parameters, specifically the reg_id parameter that is used to manage event registrations. The issue impacts all versions up to and including 3.9.9.2, indicating a long-standing flaw that has persisted across multiple releases without adequate mitigation.
The technical flaw manifests through insufficient input validation and sanitization practices within the plugin's database query construction process. When an authenticated user submits data containing the reg_id parameter, the plugin fails to properly escape or prepare this input before incorporating it into SQL queries. This represents a classic SQL injection vulnerability where the attacker can manipulate the existing query structure by appending malicious SQL commands. The vulnerability is particularly concerning because it requires only Subscriber-level access, meaning any user with basic account privileges can exploit this weakness. The lack of proper parameter binding or input sanitization creates an environment where attackers can manipulate database queries to extract sensitive information including user credentials, personal data, and system configurations.
The operational impact of this vulnerability extends beyond simple data extraction, as it provides attackers with a foothold for further exploitation within the WordPress environment. Authenticated attackers can leverage this vulnerability to access confidential information stored in the database, potentially including user account details, event registration data, booking information, and other sensitive operational data. The vulnerability's persistence across multiple versions suggests that organizations running affected plugin versions may be exposed to prolonged risk without proper patching. This type of vulnerability can lead to data breaches, identity theft, and unauthorized access to business-critical information, particularly in environments where the plugin manages sensitive event registration data or booking systems. The low privilege requirement for exploitation makes this vulnerability particularly dangerous as it can be exploited by anyone with basic user accounts, potentially including malicious insiders or compromised user credentials.
Organizations should immediately implement mitigations including updating to the latest plugin version where the vulnerability has been patched, applying the vendor's security update as soon as it becomes available, and implementing additional security measures such as input validation, parameterized queries, and database access controls. Network monitoring should be enhanced to detect unusual database query patterns that might indicate exploitation attempts. The vulnerability aligns with CWE-89 which classifies SQL injection as a critical weakness in software applications, and it maps to ATT&CK technique T1078 which covers valid accounts for maintaining access and T1046 which involves network service scanning. Security teams should also consider implementing web application firewalls and database activity monitoring to detect and prevent exploitation attempts, while conducting comprehensive security audits of all WordPress plugins to identify similar vulnerabilities. The incident underscores the importance of regular security assessments and prompt patch management in maintaining secure WordPress environments.