Spoofing attack in Office Online Server - CVE-2021-34451
Published: July 13, 2021
Vulnerability identifier: #VU54773
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-34451
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data in the Microsoft Office Online Server. A remote attacker can spoof page content.
Affected software
Office Online Server
How to mitigate CVE-2021-34451
Install updates from vendor's website.