WordPress security changelog
HIGH CVE-2025-11517 Deferred

Event Tickets and Registration: A security weakness

Event Tickets and Registration is affected by a security weakness. The vulnerable path is reachable without authentication. The resulting impact depends on how the affected component exposes the vulnerable operation.

CVE / CNA score 7.5 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Event Tickets and Registration
Plugin slug
event-tickets-and-registration
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Oct 18, 2025
Weakness
CWE-639 — Authorization Bypass Through User-Controlled Key

This CVE was published Oct 18, 2025 and is one of 3 known issues for this plugin.

Update, patch or deactivate.

Update Event Tickets and Registration to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The Event Tickets and Registration plugin for WordPress is vulnerable to payment bypass in all versions up to, and including, 5.26.5. This is due to the /wp-json/tribe/tickets/v1/commerce/free/order endpoint not verifying that a ticket type should be free allowing the user to bypass the payment. This makes it possible for unauthenticated attackers to obtain access to paid tickets, without paying for them, causing a loss of revenue for the target.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Primary and upstream sources