CVSS 5.4 (medium) · published 2026-10-18
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.
Weakness: CWE-601
Source: NVD CVE-2026-109937
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