Microsoft Office SharePoint
CVE-2020-1440 — Microsoft SharePoint Server Tampering Vulnerability
Executive Summary
A tampering vulnerability exists when Microsoft SharePoint Server fails to properly handle profile data. An attacker who successfully exploited this vulnerability could modify a targeted user's profile data. To exploit the vulnerability, an attacker would need to be authenticated on an affected SharePoint Server. The attacker would then need to send a specially modified request to the server, targeting a specific user. The security update addresses the vulnerability by modifying how Microsoft SharePoint Server handles profile data.
Overview
6.3
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
Low
INTEGRITY
Low
AVAILABILITY
Low
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 5.7
EPSS Score
0.01807
probability of exploitation in the next 30 days
0.76644 percentile - updated 2026-08-14
View on FIRST.org
Affected Products
4 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft SharePoint Enterprise Server 2013 Service Pack 1 | 4484515 (Security Update) |
Important | Tampering | Maybe |
| Microsoft SharePoint Enterprise Server 2016 | 4484506 (Security Update) |
Important | Tampering | Maybe |
| Microsoft SharePoint Server 2010 Service Pack 2 | 4486664 (Security Update) |
Important | Tampering | Maybe |
| Microsoft SharePoint Server 2019 | 4484505 (Security Update) |
Important | Tampering | Maybe |
Patches
4 patches
| Article | Type | Restart |
|---|---|---|
4484515 |
Security Update | Maybe |
4484506 |
Security Update | Maybe |
4486664 |
Security Update | Maybe |
4484505 |
Security Update | Maybe |
Exploits & PoC
No public exploit or PoC has been linked for this CVE yet. When available, references are sourced from public repositories and may be unverified or non-functional — review carefully before use.
Detection Rules
No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.
Acknowledgments
Steven Seeley (mr_me) of Source Incite
References
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