CVE-2026-58647: Microsoft PowerBI Report Server Spoofing Vulnerability

Overview

Severity

High (CVSS 8)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Spoofing

Exploit Status

Not Exploited

Exploitation Likelihood

Unlikely

Patch Tuesday

2026-Jul

Released

2026-07-14

Last Updated

2026-08-19

EPSS Score

0.35% (percentile: 27.5%)

Description

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

Affected Products (1)

SQL Server

• Power BI Report Server

Security Updates (1)

• Release Notes

Acknowledgments

Anonymous

Revision History

• 2026-07-14: Information published.
• 2026-08-19: Corrected the Power BI Report Server version in the Security Updates table to use the public release version instead of the internal build number. This is an informational change only.