CVE-2021-42320

MediumCVSS 5.7/10Last modified Jun 17, 2026

Description

Microsoft SharePoint Server Spoofing Vulnerability

Metrics

CVSS 3.1 5.7/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-290

Affected software

Vendor	Product	Versions
Microsoft	Microsoft SharePoint Enterprise Server 2016	>= 16.0.0, < 16.0.5254.1000
Microsoft	Microsoft SharePoint Server 2019	>= 16.0.0, < 16.0.10381.20001
Microsoft	Microsoft SharePoint Server Subscription Edition	>= 16.0.0, < 16.0.14326.20620

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42320Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42320Patch, Vendor Advisory

Timeline

Published: Dec 15, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-423218.8Microsoft Exchange Server Remote Code Execution Vulnerability CVE-2021-423227.8Visual Studio Code Elevation of Privilege Vulnerability CVE-2021-423233.3Azure RTOS Information Disclosure Vulnerability CVE-2021-423247.4An issue was discovered on DCN (Digital China Networks) S4600-10P-SI devices before R0241.0470. Due to improper parameter validation in the CVE-2021-423259.8Froxlor through 0.10.29.1 allows SQL injection in Database/Manager/DbManagerMySQL.php via a custom DB name.CVE-2021-423265.3Redmine before 4.1.5 and 4.2.x before 4.2.3 may disclose the names of users on activity views due to an insufficient access filter.CVE-2021-423276.7dp_link_settings_write in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c in the Linux kernel through 5.14.14 allows a heap-based CVE-2021-423295.4The “List_Add” function of message board of ShinHer StudyOnline System does not filter special characters in the title parameter. After logg CVE-2021-423308.8The “Teacher Edit” function of ShinHer StudyOnline System does not perform authority control. After logging in with user’s privilege, remote CVE-2021-423315.4The “Study Edit” function of ShinHer StudyOnline System does not perform permission control. After logging in with user’s privilege, remote CVE-2021-423324.3The “List View” function of ShinHer StudyOnline System is not under authority control. After logging in with user’s privilege, remote attack CVE-2021-423338.8The Easytest contains SQL injection vulnerabilities. After obtaining user’s privilege, remote attackers can inject SQL commands into the par