CVE-2020-0903: XSS
First published: Thu Mar 12 2020(Updated: )
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'.
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Exchange Server | =2016-cumulative_update_14 | |
| Microsoft Exchange Server | =2016-cumulative_update_15 | |
| Microsoft Exchange Server | =2019-cumulative_update_3 | |
| Microsoft Exchange Server | =2019-cumulative_update_4 | |
| =2016-cumulative_update_14 | ||
| =2016-cumulative_update_15 | ||
| =2019-cumulative_update_3 | ||
| =2019-cumulative_update_4 |
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Frequently Asked Questions
What is the severity of CVE-2020-0903?
CVE-2020-0903 is classified as a critical vulnerability due to its potential for exploitation through cross-site scripting.
How do I fix CVE-2020-0903?
To fix CVE-2020-0903, apply the latest cumulative updates for Microsoft Exchange Server 2016 or 2019 as specified in Microsoft security guidance.
What types of Microsoft Exchange Server are affected by CVE-2020-0903?
CVE-2020-0903 affects Microsoft Exchange Server 2016 (cumulative updates 14 and 15) and Exchange Server 2019 (cumulative updates 3 and 4).
Can CVE-2020-0903 be exploited remotely?
Yes, CVE-2020-0903 can be exploited remotely as it involves specially crafted web requests to affected Exchange servers.
What are the consequences of exploiting CVE-2020-0903?
Exploitation of CVE-2020-0903 can lead to unauthorized access to user accounts and allow attackers to execute arbitrary code in the context of the affected user.
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- version/microsoft exchange server/2016-cumulative_update_14
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- version/microsoft exchange server/2019-cumulative_update_3
- version/microsoft exchange server/2019-cumulative_update_4