CVE-2021-41372

Power BI Report Server Spoofing Vulnerability

CVE-2021-41372 is fixed in 2 products on 1 platform, first by KB5007903, released November 9, 2021. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.6
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0068
52nd percentile

<p>A Cross-Site Scripting (XSS) and Cross-Site Request Forgery (CSRF) vulnerability exists when Power BI Report Server Template file (pbix) containing HTML files is uploaded to the server and HTML files are accessed directly by the victim.</p> <p>Combining these 2 vulnerabilities together, an attacker is able to upload malicious Power BI templates files to the server using the victim's session and run scripts in the security context of the user and perform privilege escalation in case the victim has admin privileges when the victim access one of the HTML files present in the malicious Power BI template uploaded.</p> <p>The security update addresses the vulnerability by helping to ensure that Power BI Report Server properly sanitize file uploads.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Power BI Report Server version 1.11.8091.10468 KB5007903 Nov 9, 2021
Power BI Report Server version 1.12.7977.29537 KB5007903 Nov 9, 2021

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