CVE-2024-49038 Microsoft Copilot Studio Elevation Of Privilege Vulnerability

Critical 9.3 Published 26 Nov 2024 Updated 8 Jul 2025

An attacker can exploit cross-site scripting in Microsoft Copilot Studio to elevate privileges over the network.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2024-49038?

CVE-2024-49038 is a critical cross-site scripting vulnerability in Microsoft Copilot Studio, published on 26 Nov 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Improper neutralization of input during web page generation ('Cross-site Scripting') in Copilot Studio by an unauthorized attacker leads to elevation of privilege over a network.

Weakness: CWE-79

Which versions are affected by CVE-2024-49038?

It affects 1 product.

Products include Microsoft Copilot Studio.

How do I fix CVE-2024-49038?

No fix has been published for CVE-2024-49038 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-2024-49038 being exploited?

There is no known exploitation of CVE-2024-49038 in the wild and no public exploit code.

Sources

Also known as GHSA-9qqr-v783-v57r.