Permissions, Privileges, and Access Controls in Microsoft SharePoint Foundation - CVE-2021-1718
Published: January 12, 2021
Vulnerability identifier: #VU49396
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1718
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to tampering issue in SharePoint Server, which leads to security restrictions bypass and privilege escalation.
Affected software
Microsoft SharePoint Foundation
How to mitigate CVE-2021-1718
Install updates from vendor's website.