Spoofing attack in Microsoft SharePoint Server - CVE-2021-26418

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Main Vulnerability Database Vulnerabilities #VU53077

Spoofing attack in Microsoft SharePoint Server - CVE-2021-26418

Published: May 11, 2021


Vulnerability identifier: #VU53077
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-26418
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Microsoft SharePoint Server

Detailed vulnerability description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data in Microsoft SharePoint. A remote authenticated attacker can spoof page content.


How to mitigate CVE-2021-26418

Install updates from vendor's website.

Sources