CVE-2026-3174
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductEvent Tickets and Registration
PublishedSep 8, 2026
First seenSep 8, 2026
Weakness typeCWE-862Missing authorization
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| stellarwp Event Tickets and Registration | v ≤ 5.27.4 | — |
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