CVE-2026-47294 Microsoft SharePoint Server Remote Code Execution Vulnerability
An authorized attacker can execute arbitrary code on Microsoft SharePoint Server via OS command injection.
- 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-2026-47294?
CVE-2026-47294 is a high-severity command injection vulnerability in Microsoft Sharepoint Server, published on 1 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Improper neutralization of special elements used in an os command ('os command injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Weakness: CWE-78
Which versions are affected by CVE-2026-47294?
It affects 1 product.
Products include Microsoft Sharepoint Server.
How do I fix CVE-2026-47294?
No fix has been published for CVE-2026-47294 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-47294 being exploited?
There is no known exploitation of CVE-2026-47294 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Sharepoint Server
- CVE-2026-50522 Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
- CVE-2026-58644 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2026-20963 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2025-53770 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2023-29357 Microsoft SharePoint Server Privilege Escalation
Sources
Also known as GHSA-chp7-cgwg-984j.