CVE-2020-0903

Description

A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not properly sanitize a specially crafted web request to an affected Exchange server, aka 'Microsoft Exchange Server Spoofing Vulnerability'.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.73% Top 30%
Vendor Advisory microsoft.com
Affected: Microsoft Microsoft Exchange Server 2019 Cumulative Update 4
Affected: Microsoft Microsoft Exchange Server 2016 Cumulative Update 15
Affected: Microsoft Microsoft Exchange Server 2019 Cumulative Update 3
Affected: Microsoft Microsoft Exchange Server 2016 Cumulative Update 14
Published at:
Updated at:

References

Link Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0903 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-0903?
CVE-2020-0903 has been scored as a medium severity vulnerability.
How to fix CVE-2020-0903?
To fix CVE-2020-0903, 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-2020-0903 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-0903 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-0903?
CVE-2020-0903 affects Microsoft Microsoft Exchange Server 2019 Cumulative Update 4, Microsoft Microsoft Exchange Server 2016 Cumulative Update 15, Microsoft Microsoft Exchange Server 2019 Cumulative Update 3, Microsoft Microsoft Exchange Server 2016 Cumulative Update 14.
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