CVE-2026-109937

Otter Blocks < 3.2.3 - Unauthenticated Open Redirect via Stripe Checkout Block

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.

Affected

Otter Blocks

EPSS

0.14% chance of exploitation in the next 30 days, 3rd percentile

Published

2026-10-18

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry