Description In Moodle, insufficient capability checks made it possible to remove other users' calendar URL subscriptions. Remediation References CVE-2021-36400 Related Vulnerabilities Apache Tomcat Off-by-one Error Vulnerability (CVE-2023-28709) Moodle Other Vulnerability (CVE-2019-10189) Apache Tomcat Improper Input Validation Vulnerability (CVE-2011-2526) MediaWiki Credentials Management Errors Vulnerability (CVE-2015-8009) Moodle Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2022-45151) Severity Medium Classification CVE-2021-36400 CWE-639 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Tags Missing Update Known Vulnerabilities