In Moodle, insufficient redirect handling made it possible to blindly bypass cURL blocked hosts/allowed ports restrictions, resulting in a blind SSRF risk.
A blind Server-Side Request Forgery (SSRF) vulnerability was found in Moodle. This flaw exists due to insufficient validation of user-supplied input in LTI provider library. The library does not utilise Moodle's inbuilt cURL helper, which resulted in a blind SSRF risk. An attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems. This vulnerability allows a remote attacker to perform SSRF attacks.
Insufficient capability checks could allow users with the moodle/site:uploadusers capability to delete users, without having the necessary moodle/user:delete capability.
A flaw was found in Moodle in versions 3.11 to 3.11.4, 3.10 to 3.10.8, 3.9 to 3.9.11 and earlier unsupported versions. The calendar:manageentries capability allowed managers to access or modify any calendar event, but should have been restricted from accessing user level events.
A flaw was found in Moodle in versions 3.11 to 3.11.4, 3.10 to 3.10.8, 3.9 to 3.9.11 and earlier unsupported versions. Insufficient capability checks could lead to users accessing their grade report for courses where they did not have the required gradereport/user:view capability.