What is GHSA-5xp8-jj53-535m?

GHSA-5xp8-jj53-535m is a security advisory published by GitHub Security Advisories with Critical severity. The MStore API WordPress plugin before 4.21.0 does not verify the payment with the payment...

Which CVE IDs does GHSA-5xp8-jj53-535m cover?

GHSA-5xp8-jj53-535m covers the following CVE IDs: CVE-2026-16038. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-5xp8-jj53-535m?

GHSA-5xp8-jj53-535m has a CVSS v3 base score of 9.1, published by GitHub Security Advisories.

GHSA-5xp8-jj53-535mCriticalCVSS 9.1

The MStore API WordPress plugin before 4.21.0 does not verify the payment with the payment...

Vendor

GitHub Security Advisories

Published

August 7, 2026

Last Modified

August 7, 2026

🔗 CVE IDs covered (1)

CVE-2026-16038 →

📋 Description

The MStore API WordPress plugin before 4.21.0 does not verify the payment with the payment gateway before marking an order as paid on several of its payment-completion endpoints, allowing an unauthenticated attacker to mark an arbitrary order fully paid without paying and obtain goods or services for free.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-16038
https://wpscan.com/vulnerability/6321d247-39c7-43a6-a528-202e1118a5d5
https://github.com/advisories/GHSA-5xp8-jj53-535m