CVE-2026-109937

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.

Score

CVSS 3.1 5.4 Medium

Status

Deferred - contact@wpscan.com

Published

2026-10-18

Last modified

2026-10-19

Weaknesses

CWE-601

Affected products

• Otter Blocks (Unknown)

References

• https://wpscan.com/vulnerability/9765313d-c879-457f-851f-dab74b8d90a0/