ZDI-CAN-12949: Microsoft SharePoint Server-Side Control Interpretation Conflict Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft SharePoint. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of server-side controls. By specifying a control using a non-canonical string, an unsafe server-side control can be instantiated. An attacker can leverage this vulnerability to execute code in the context of the service account.

Affected Software

1 affected component
Microsoft SharePoint

Event History

Feb 22, 2025
Advisory Published
via ZDI·03:03 PM

Frequently Asked Questions

1

What is the severity of ZDI-CAN-12949?

The severity of ZDI-CAN-12949 is high due to its potential to allow remote code execution.

2

How do I fix ZDI-CAN-12949?

To fix ZDI-CAN-12949, you need to apply the relevant security updates from Microsoft for SharePoint.

3

Who can exploit the ZDI-CAN-12949 vulnerability?

Authentication is required for an attacker to exploit the ZDI-CAN-12949 vulnerability.

4

Which software is affected by ZDI-CAN-12949?

The affected software for ZDI-CAN-12949 is Microsoft SharePoint.

5

What type of attack does ZDI-CAN-12949 facilitate?

ZDI-CAN-12949 allows remote attackers to execute arbitrary code on vulnerable installations.

Contact

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