CVE-2020-0972Network attack vector

Authenticated content spoofing via unsanitized web requests

Published Apr 15, 2020 · Updated Aug 4, 2024

Spoofing in Microsoft SharePoint allows remote authenticated users to alter content presented to another user via a crafted web request. SharePoint Foundation 2010 SP2 and 2013 SP1, SharePoint Enterprise Server 2016, and SharePoint Server 2019 fail to sanitize the request; Microsoft has not disclosed the affected request handler or exact transformation. Exploitation requires low-privileged access and interaction by another user, and the consequence is limited to spoofed content with confidentiality and integrity effects rather than service interruption.

CVSS severity5.4
Medium
EPSS probability1.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Spoofing in Microsoft SharePoint allows remote authenticated users to alter content presented to another user via a crafted web request. SharePoint Foundation 2010 SP2 and 2013 SP1, SharePoint Enterprise Server 2016, and SharePoint Server 2019 fail to sanitize the request; Microsoft has not disclosed the affected request handler or exact transformation. Exploitation requires low-privileged access and interaction by another user, and the consequence is limited to spoofed content with confidentiality and integrity effects rather than service interruption.

The record

CVE
CVE-2020-0972
Published
Apr 15, 2020
Updated
Aug 4, 2024
Vendor
Microsoft
Product
Microsoft SharePoint Server
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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.

  1. Affected versionversion=2019

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microsoft · Microsoft SharePoint Serverversion=2019
Microsoft · Microsoft SharePoint Foundationversion=2010 Service Pack 2; version=2013 Service Pack 1
Microsoft · Microsoft SharePoint Enterprise Serverversion=2016

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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