What is GHSA-m5fx-f9px-4463?

GHSA-m5fx-f9px-4463 is a security advisory published by GitHub Security Advisories with Medium severity. The Otter Blocks WordPress plugin before 3.2.3 does not validate that a user-supplied return URL...

Which CVE IDs does GHSA-m5fx-f9px-4463 cover?

GHSA-m5fx-f9px-4463 covers the following CVE IDs: CVE-2026-109937. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-m5fx-f9px-4463?

GHSA-m5fx-f9px-4463 has a CVSS v3 base score of 5.4, published by GitHub Security Advisories.

GHSA-m5fx-f9px-4463MediumCVSS 5.4

The Otter Blocks WordPress plugin before 3.2.3 does not validate that a user-supplied return URL...

Vendor

GitHub Security Advisories

Published

October 18, 2026

Last Modified

October 18, 2026

🔗 CVE IDs covered (1)

CVE-2026-109937 →

📋 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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-109937
https://wpscan.com/vulnerability/9765313d-c879-457f-851f-dab74b8d90a0
https://github.com/advisories/GHSA-m5fx-f9px-4463