The vulnerability identified as CVE-2025-3761 affects the 'My Tickets – Accessible Event Ticketing' WordPress plugin developed by joedolson. It is classified under CWE-269, indicating improper privilege management. The root cause lies in the mt_save_profile() function, which fails to enforce proper access controls when updating user roles. As a result, any authenticated user with at least Subscriber-level permissions can exploit this flaw to escalate their privileges to administrator. This escalation allows attackers to gain full administrative control over the WordPress site, enabling them to modify content, install malicious plugins, exfiltrate sensitive data, or disrupt site availability. The vulnerability affects all versions up to and including 2.0.16. The CVSS v3.1 base score is 8.8, reflecting a network attack vector with low attack complexity, requiring only privileges at the Subscriber level, no user interaction, and impacting confidentiality, integrity, and availability. Although no known exploits are currently reported in the wild, the vulnerability's nature and ease of exploitation pose a significant risk. The lack of patch links suggests a patch may not yet be available, emphasizing the need for immediate mitigation. The vulnerability is particularly critical because WordPress powers a large portion of websites globally, and plugins like 'My Tickets' are commonly used for event management, making affected sites attractive targets for attackers seeking administrative access.

The impact of CVE-2025-3761 is severe for organizations using the affected plugin. Successful exploitation results in complete administrative control over the WordPress site, compromising confidentiality by exposing sensitive user and organizational data, including personal information and event details. Integrity is compromised as attackers can alter website content, inject malicious code, or create backdoors. Availability may be disrupted through site defacement or denial-of-service attacks initiated by the attacker. For organizations relying on WordPress for event ticketing and customer engagement, this can lead to reputational damage, financial loss, and regulatory penalties if sensitive data is exposed. The vulnerability's ease of exploitation by low-privileged authenticated users increases the attack surface, especially in environments with many registered users. Additionally, attackers can leverage escalated privileges to move laterally within the hosting environment or launch further attacks against connected systems. The absence of known exploits currently provides a window for proactive defense, but the high CVSS score underscores the urgency of addressing this issue.

Organizations should immediately audit their WordPress installations to identify the presence of the 'My Tickets – Accessible Event Ticketing' plugin and verify its version. Until an official patch is released, consider temporarily disabling or uninstalling the plugin to eliminate the attack vector. Restrict user registrations and review user roles to minimize the number of users with Subscriber-level or higher privileges. Implement strict access controls and monitor logs for unusual role changes or privilege escalations. Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious requests targeting the mt_save_profile() function or role update endpoints. Enforce the principle of least privilege by limiting plugin management capabilities to trusted administrators only. Regularly back up WordPress sites and test restoration procedures to recover quickly from potential compromises. Stay informed about vendor updates and apply patches promptly once available. Additionally, consider isolating WordPress environments and using multi-factor authentication for administrative accounts to reduce the risk of unauthorized access.