Description Microsoft SharePoint Server Remote Code Execution Vulnerability Remediation References CVE-2021-26420 Related Vulnerabilities Jenkins Improper Input Validation Vulnerability (CVE-2018-1999001) SharePoint Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2019-1032) Oracle Database Server CVE-2011-3511 Vulnerability (CVE-2011-3511) PHP Other Vulnerability (CVE-2006-1990) WordPress Plugin Companion Sitemap Generator Cross-Site Request Forgery (3.6.6) Severity High Classification CVE-2021-26420 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Tags Missing Update Known Vulnerabilities