CVE-2026-109937

MediumCVSS 5.4/10Last modified Oct 19, 2026

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.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Oct 18, 2026
Last modified
Oct 19, 2026
NVD status
Deferred

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CVE-2026-109937: Medium severity, CVSS 5.4 | Vulnix