CVE-2021-41372: A Cross-Site Scripting (XSS) and Cross-Site Request Forgery (CSRF) vulnerability exists when Power BI Report Server Template file (pbix) containing HTML files…

PriorityP342critical9.6CVSS 3.1

AVNACLPRNUIRSCCHIHAH

EPSS

0.62%

45.2th percentile

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. 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. The security update addresses the vulnerability by helping to ensure that Power BI Report Server properly sanitize file uploads.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
microsoft	power_bi_report_server	—	—
microsoft	power_bi_report_server_version_1.11.8091.10468	>= 1.0.0.0 < 15.0.1106.457	15.0.1106.457
microsoft	power_bi_report_server_version_1.12.7977.29537	>= 1.0.0.0 < 15.0.1107.165	15.0.1107.165
msrc	power_bi_report_server_version_1.11.8091.10468	—	—
msrc	power_bi_report_server_version_1.12.7977.29537	—	—

CVSS provenance

nvdv3.19.6CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

vendor_msrc7.6HIGH

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