Authenticated cross-site scripting via unsanitized web request
Published Apr 15, 2020 · Updated Feb 28, 2025
Cross-site scripting in Microsoft SharePoint and Project servers allows remote authenticated users to inject script through a crafted web request. Microsoft has not publicly disclosed the request-processing locus or exact field that receives insufficient sanitization. Exploitation requires low-privileged authentication and victim interaction, allowing injected script to read or modify SharePoint data available to the victim.
Summary
What happened
Cross-site scripting in Microsoft SharePoint and Project servers allows remote authenticated users to inject script through a crafted web request. Microsoft has not publicly disclosed the request-processing locus or exact field that receives insufficient sanitization. Exploitation requires low-privileged authentication and victim interaction, allowing injected script to read or modify SharePoint data available to the victim.
The record
- CVE
- CVE-2020-0954
- Published
- Apr 15, 2020
- Updated
- Feb 28, 2025
- Vendor
- Microsoft
- Product
- Microsoft Project Server
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 15, 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?
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- Affected versionversion=2013 Service Pack 1 (64-bit edition)
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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