Microsoft Office SharePoint
CVE-2020-1295 — Microsoft SharePoint Elevation of Privilege Vulnerability
Executive Summary
An elevation of privilege vulnerability exists in Microsoft SharePoint. An attacker who successfully exploited this vulnerability could attempt to impersonate another user of the SharePoint server. To exploit this vulnerability, an authenticated attacker would send a specially crafted request to an affected server, thereby allowing the impersonation of another SharePoint user. The security update addresses the vulnerability by correcting how Microsoft SharePoint sanitizes user input.
Overview
8.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
EPSS Score
0.02957
probability of exploitation in the next 30 days
0.85974 percentile - updated 2026-08-14
View on FIRST.org
Affected Products
3 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft SharePoint Enterprise Server 2013 Service Pack 1 | 4484405 (Security Update) |
Important | Elevation of Privilege | Maybe |
| Microsoft SharePoint Enterprise Server 2016 | 4484402 (Security Update) |
Important | Elevation of Privilege | Maybe |
| Microsoft SharePoint Server 2019 | 4484400 (Security Update) |
Important | Elevation of Privilege | Maybe |
Patches
3 patches
| Article | Type | Restart |
|---|---|---|
4484405 |
Security Update | Maybe |
4484402 |
Security Update | Maybe |
4484400 |
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
None
References
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