CVE-2023-21806 Power BI Report Server Spoofing Vulnerability
An attacker can exploit a spoofing vulnerability in Power BI Report Server to bypass security controls.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-21806?
CVE-2023-21806 is a high-severity cross-site scripting vulnerability in Microsoft Power BI Report Server - January 2023, published on 14 Feb 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Power BI Report Server Spoofing Vulnerability
Weakness: CWE-79
Which versions are affected by CVE-2023-21806?
It affects 1 product.
Products include Microsoft Power Bi Report Server.
How do I fix CVE-2023-21806?
No fix has been published for CVE-2023-21806 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2023-21806 being exploited?
There is no known exploitation of CVE-2023-21806 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Power BI Report Server - January 2023
- CVE-2026-65811 Power BI Remote Code Execution Vulnerability
- CVE-2026-58647 Microsoft PowerBI Report Server Spoofing Vulnerability
- CVE-2026-21229 Power BI Remote Code Execution Vulnerability
- CVE-2021-26859 Microsoft Power BI Information Disclosure Vulnerability
- CVE-2021-41372 Power BI Report Server Spoofing Vulnerability
Sources
Also known as GHSA-6597-448m-8mxp.