Insufficient capability checks in some grade related web services meant students were able to view other students' grades.
|Versions affected:||3.10, 3.9 to 3.9.3, 3.8 to 3.8.6|
|Versions fixed:||3.10.1, 3.9.4 and 3.8.7|
|Reported by:||Juan Segarra Montesinos|
|Tracker issue:||MDL-69797 Grade information disclosure in grade's external fetch functions|