CVE-2020-1456

Public Exploit

Description

A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka 'Microsoft Office SharePoint XSS Vulnerability'. This CVE ID is unique from CVE-2020-1450, CVE-2020-1451.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.43%
Vendor Advisory microsoft.com
Affected: Microsoft Microsoft SharePoint Enterprise Server
Affected: Microsoft Microsoft SharePoint Server
Published at:
Updated at:

References

Link Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1456 patch vendor advisory
https://slashcrypto.org/2021/01/15/CVE-2020-1456/ third party advisory exploit
https://it-sec.de/ger/Aktuelles-Termine/it.sec-blog/it.sec-Research-Team-findet-unbekannte-Schwachstelle-in-Microsoft-Office-SharePoint third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-1456?
CVE-2020-1456 has been scored as a medium severity vulnerability.
How to fix CVE-2020-1456?
To fix CVE-2020-1456, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-1456 being actively exploited in the wild?
It is possible that CVE-2020-1456 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-1456?
CVE-2020-1456 affects Microsoft Microsoft SharePoint Enterprise Server, Microsoft Microsoft SharePoint Server.
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