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 Custom Website Data Cross-Site Scripting (1.0) WordPress Plugin Asgaros Forum Security Bypass (1.5.7) WordPress Plugin MC4WP:Mailchimp for WordPress Cross-Site Request Forgery (4.8.4) Joomla Improper Neutralization of Formula Elements in a CSV File Vulnerability (CVE-2019-12765) Opencart Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2025-1747) 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