What is GHSA-phr2-vr74-whpx?

GHSA-phr2-vr74-whpx is a security advisory published by GitHub Security Advisories with High severity. Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate...

Which CVE IDs does GHSA-phr2-vr74-whpx cover?

GHSA-phr2-vr74-whpx covers the following CVE IDs: CVE-2026-54998. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-phr2-vr74-whpx?

GHSA-phr2-vr74-whpx has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-phr2-vr74-whpxHighCVSS 8.8

Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate...

Vendor

GitHub Security Advisories

Published

July 3, 2026

Last Modified

July 3, 2026

🔗 CVE IDs covered (1)

CVE-2026-54998 →

📋 Description

Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-54998
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54998
https://github.com/advisories/GHSA-phr2-vr74-whpx