Security announcements | Moodle.org

Insufficient state and capability checks resulted in some details of hidden courses (such as course name, description and teachers) being available to users who did not have permission to access them.

A DNS rebind risk in the way cURL requests were handled could result in an SSRF risk, due to the possibility of cURL blocked hosts / allowed ports site configurations being bypassed.

The upstream ADOdb library contained an SQL injection risk in the pg_insert_id() method. It is important to note that the core Moodle LMS was NOT affected by this vulnerability, however as a precaution, this library has been upgraded to remove the risk entirely, in case any third party code/plugins uses the vulnerable code.

Additional cache controls were required to prevent web browsers caching a user's password on the login page (note accessing this would require access to the web browser on the device where the user had logged in).

An extension was omitted from the MathJax configuration shipped with Moodle when the library was upgraded in LMS 5.0, resulting in an XSS risk.

Additional checks were required to ensure users can only fetch cohort data they are intended to have access to.

Insufficient capability checks in a messaging web service made it possible to view other users' names and online status.

Additional checks were required to prevent users deleting course sections they did not have permission to modify.

The return URL in the policy tool required extra sanitizing to prevent a reflected XSS risk.

A remote code execution risk was identified in the Moodle LMS EQUELLA repository. By default this was only available to teachers and managers, on sites with the EQUELLA repository enabled.