Description In Moodle 3.3, the course overview block reveals activities in hidden courses. Remediation References CVE-2017-7531 Related Vulnerabilities WordPress Plugin Zingiri Web Shop Cross-Site Scripting (2.4.2) Joomla Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2018-6378) Drupal Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2009-4370) WordPress Plugin Manual Image Crop Cross-Site Scripting (1.10) Django Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Vulnerability (CVE-2021-28658) Severity Medium Classification CVE-2017-7531 CWE-200 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Tags Missing Update Known Vulnerabilities