MSA-21-0027: Stored XSS in quiz override screens via user ID number

by Michael Hawkins.  

ID numbers displayed in the quiz override screens required additional sanitizing to prevent a stored XSS risk.


Severity/Risk:Minor
Versions affected:3.11
Versions fixed:3.11.1
Reported by:Paul Holden
CVE identifier:CVE-2021-36399
Changes (master):http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-71898
Tracker issue:MDL-71898 Stored XSS in quiz override screens via user ID number

Read more https://moodle.org/mod/forum/discuss.php?d=424805&parent=1710824