CVE-2020-1439 Deserialization in Microsoft SharePoint Enterprise Server
Remote attackers can execute arbitrary code on SharePoint Server via unsafe XML deserialization in PerformancePoint Services.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-1439?
CVE-2020-1439 is a high-severity unsafe deserialization vulnerability in Microsoft Sharepoint Enterprise Server, published on 14 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A remote code execution vulnerability exists in PerformancePoint Services for SharePoint Server when the software fails to check the source markup of XML file input, aka 'PerformancePoint Services Remote Code Execution Vulnerability'.
Weakness: CWE-502
Which versions are affected by CVE-2020-1439?
It affects 3 products.
Products include Microsoft Sharepoint Enterprise Server, Microsoft Sharepoint Foundation, Microsoft Sharepoint Server.
How do I fix CVE-2020-1439?
No fix has been published for CVE-2020-1439 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2020-1439 being exploited?
There is no known exploitation of CVE-2020-1439 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-7vrg-q6mv-3q9x.