What is CVE-2025-11517?

CVE-2025-11517 is a high-severity vulnerability in Stellarwp Event Tickets And Registration, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2025-10-18.

How severe is CVE-2025-11517?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Stellarwp Event Tickets And Registration

CVE-2025-11517

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.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.004 (30.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Stellarwp Event Tickets And Registration — versions 0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

Frequently asked questions

What is CVE-2025-11517?: CVE-2025-11517 is a high-severity vulnerability in Stellarwp Event Tickets And Registration, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2025-10-18.
How severe is CVE-2025-11517?: High severity. CVSS v3 base score is 7.5 out of 10.