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CVE-2020-0903 Details

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'.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CNA: CISA-ADPCVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0903	CVE	PatchVendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0903	[email protected]	PatchVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	CISA-ADP

Affected Products

Product	Versions
microsoft exchange server	2016 cumulative_update_14 2016 cumulative_update_15 2019 cumulative_update_3 2019 cumulative_update_4
CPE cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:::::: cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:::::: cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:::::: cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:::::: Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Feb 28, 2025	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Mar 17, 2020	Initial Analysis	[email protected]