Authenticated cross-site scripting via unsanitized web request
Published Feb 11, 2020 · Updated Feb 28, 2025
Cross-site scripting in Microsoft SharePoint Server 2013 SP1, 2016, and 2019 allows remote authenticated users to run script via a crafted request. Microsoft has not disclosed the affected request handler or parameter, stating only that SharePoint fails to sanitize a specially crafted web request. Exploitation requires SharePoint credentials and user interaction, and the resulting script can read or modify data available to the victim's browser session.
Summary
What happened
Cross-site scripting in Microsoft SharePoint Server 2013 SP1, 2016, and 2019 allows remote authenticated users to run script via a crafted request. Microsoft has not disclosed the affected request handler or parameter, stating only that SharePoint fails to sanitize a specially crafted web request. Exploitation requires SharePoint credentials and user interaction, and the resulting script can read or modify data available to the victim's browser session.
The record
- CVE
- CVE-2020-0694
- Published
- Feb 11, 2020
- Updated
- Feb 28, 2025
- Vendor
- Microsoft
- Product
- Microsoft SharePoint Server
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 11, 2020CVE publishedPublication date reported by the CVE source.
- Feb 28, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2013 Service Pack 1
- Affected versionversion=2019
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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