Description Microsoft SharePoint Server Remote Code Execution Vulnerability Remediation References CVE-2021-34520 Related Vulnerabilities WordPress Plugin File Manager Advanced Shortcode Arbitrary File Upload (2.5.3) Drupal Core 6.x Multiple Vulnerabilities (6.0 - 6.22) Magento Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') Vulnerability (CVE-2021-36023) Roundcube Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2020-18671) MySQL CVE-2016-5507 Vulnerability (CVE-2016-5507) Severity High Classification CVE-2021-34520 CWE-502 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Tags Missing Update Known Vulnerabilities