CVE-2026-97634: Event Tickets and Registration <= 5.29.5 - Authenticated (Contributor+) SQL Injection via 'orderby' Parameter
The Event Tickets and Registration plugin for WordPress is vulnerable to generic SQL Injection via the 'orderby' parameter in all versions up to, and including, 5.29.5 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 contributor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. A Contributor-level user can reach the vulnerable code path by supplying a postid they authored, as the canaccesspage() gate requires only post authorship rather than the editothersposts capability for post owners.
Affected Software
Event History
Frequently Asked Questions
Which users can exploit this issue?
Any authenticated WordPress user with Contributor-level access or higher can potentially exploit it. A Contributor can reach the affected code path when they supply a post_id for a post they authored; they do not need the edit_others_posts capability.
What does an attacker need to do to exploit it?
The attacker needs an authenticated account with at least Contributor privileges and must provide a crafted orderby parameter. Exploitation can append SQL to an existing query and may allow extraction of sensitive database information.
Are versions later than 5.29.5 affected?
The provided information identifies all versions up to and including 5.29.5 as affected. It does not state which version, if any, contains a fix.