What is CVE-2026-3174?

CVE-2026-3174 is a high-severity vulnerability in Stellarwp Event Tickets And Registration, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-09-08.

How severe is CVE-2026-3174?

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

Auth bypass in Stellarwp Event Tickets And Registration

CVE-2026-3174

The Event Tickets and Registration plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the Stripe OAuth return endpoint in all versions up to, and including, 5.27.4. This makes it possible for unauthenticated attackers to overwrite the site's Stripe merchant credentials (access tokens, publishable keys, and account ID), diverting all subsequent payment processing to the attacker's Stripe account.

Vulnerability class: Broken Access Control

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

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Frequently asked questions

What is CVE-2026-3174?: CVE-2026-3174 is a high-severity vulnerability in Stellarwp Event Tickets And Registration, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-09-08.
How severe is CVE-2026-3174?: High severity. CVSS v3 base score is 7.5 out of 10.