Description In Moodle, insufficient capability checks made it possible to remove other users' calendar URL subscriptions. Remediation References CVE-2021-36400 Related Vulnerabilities WordPress Plugin Membership 2 Unspecified Vulnerability (4.0.0.2) WordPress Plugin Translate WordPress with GTranslate Cross-Site Scripting (2.8.51) WordPress Plugin Feed Changer & Remover Cross-Site Scripting (0.2) Craft CMS Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2021-27902) WordPress Plugin Adifier System Multiple Vulnerabilities (3.1.3) Severity Medium Classification CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Tags Missing Update Known Vulnerabilities CWE-639 CVE-2021-36400