What is CVE-2026-83946?

CVE-2026-83946 is a high-severity vulnerability in Microsoft Azure Portal, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2026-09-18.

How severe is CVE-2026-83946?

High severity. CVSS v3 base score is 8.2 out of 10.

XSS in Microsoft Azure Portal

CVE-2026-83946

Improper neutralization of input during web page generation ('cross-site scripting') in Azure Portal allows an unauthorized attacker to perform spoofing over a network.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N.

Affected products

Microsoft Azure Portal

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

secure@microsoft.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-83946?: CVE-2026-83946 is a high-severity vulnerability in Microsoft Azure Portal, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2026-09-18.
How severe is CVE-2026-83946?: High severity. CVSS v3 base score is 8.2 out of 10.