CVE Tools
Sign in

CVE-2021-41372

Power BI Report Server Spoofing Vulnerability

Published: Nov 10, 2021Updated: Feb 24, 2026 Sources: CVE List NVD BDUCWE-79
7.6HIGH
NVD MITRE
EPSS Score
0.6%
Top 54.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:CC:HI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-79CWE-352

Affected Products

Microsoft Corp
commercial·USaka microsoft, microsoft corporation
Power BI Report ServerOn-premWeb App
Enterprise Software / itsm-monitoring
Power BI Report Server version 1.11.8091.10468On-prem
Databases / data-warehouse-analytics
Power BI Report Server version 1.12.7977.29537On-prem
Databases / data-warehouse-analytics
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2021-41372?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41372
portal.msrc.microsoft.com
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-41372
msrc.microsoft.com
https://www.cybersecurity-help.cz/vdb/SB2021110935
cybersecurity-help.cz

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-41372 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows