[ CVE-2026-109937 · Published 18 Oct 2026 ]
Vulnerability in Unknown Otter Blocks
CVSS 5.4
EPSS <1%No fix listed yet
[ Description ]Official description
The Otter Blocks WordPress plugin before 3.2.3 does not validate that a user-supplied return URL belongs to the site before using it to build the return destination of a Stripe Checkout session, allowing unauthenticated attackers to redirect victims who complete or cancel checkout to an arbitrary external URL.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.