Security announcements | Moodle.org

Insufficient capability checks in some grade related web services meant students were able to view other students' grades.

Some search inputs were vulnerable to reflected XSS due to insufficient escaping of search queries.

The participants table download always included user emails, but should have only done so when users' emails are not hidden.

It was possible to include JavaScript when re-naming content bank items.

If the upload course tool was used to delete an enrolment method which did not exist or was not already enabled, the tool would erroneously enable that enrolment method. This could lead to unintended users gaining access to the course.

Some database module web services allowed students to add entries within groups they did not belong to.

Insufficient capability checks could lead to users with the ability to course restore adding additional capabilities to roles within that course.

Users' enrolment capabilities were not being sufficiently checked when they restored into an existing course, which could lead to them unenrolling users without having permission to do so.

It was possible to include JavaScript in a book's chapter title, which was not escaped on the "Add new chapter" page.

Note: By default this functionality is only available to trusted users (such as teachers), but has been included as a security issue as a precaution, since it was not sanitized on sites with forceclean enabled.

The decompressed size of zip files was not checked against available user quota before unzipping them, which could lead to a denial of service risk.