CVE-2026-83946 Azure Portal - Reflected XSS

Azure Portal contains a reflected XSS caused by improper neutralization of input during web page generation, letting unauthorized attackers perform spoofing over a network, exploit requires no special privileges.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.32% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Reflected XSS
Impact
Client Script Exec, Man In The Middle
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to the latest version of Azure Portal.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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