CVE-2020-1440 Microsoft SharePoint Server Tampering Vulnerability
An authenticated attacker can modify targeted user profile data in Microsoft SharePoint Server due to improper handling of profile information.
- 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-2020-1440?
CVE-2020-1440 is a medium-severity missing authorization vulnerability in Microsoft Sharepoint Enterprise Server, published on 11 Sep 2020. 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
<p>A tampering vulnerability exists when Microsoft SharePoint Server fails to properly handle profile data. An attacker who successfully exploited this vulnerability could modify a targeted user's profile data.</p> <p>To exploit the vulnerability, an attacker would need to be authenticated on an affected SharePoint Server. The attacker would then need to send a specially modified request to the server, targeting a specific user.</p> <p>The security update addresses the vulnerability by modifying how Microsoft SharePoint Server handles profile data.</p>
Which versions are affected by CVE-2020-1440?
It affects 2 products.
Products include Microsoft Sharepoint Enterprise Server, Microsoft Sharepoint Server.
How do I fix CVE-2020-1440?
No fix has been published for CVE-2020-1440 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-1440 being exploited?
There is no known exploitation of CVE-2020-1440 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Sharepoint Enterprise Server
- CVE-2019-0604 Microsoft SharePoint Remote Code Execution
- CVE-2023-24955 Microsoft SharePoint Server Code Injection
- CVE-2025-49706 Microsoft SharePoint Improper Authentication
- CVE-2020-1210 Microsoft SharePoint Remote Code Execution Vulnerability
- CVE-2020-1595 Microsoft SharePoint Remote Code Execution Vulnerability
Sources
Also known as GHSA-5r4c-r95m-h54g.