Moodle Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability - CVE-2021-32475
ID numbers displayed in the quiz grading report required additional sanitizing to prevent a stored XSS risk. Moodle 3.10 to 3.10.3 3.9 to 3.9.6 3.8 to 3.8.8 3.5 to 3.5.17 and earlier unsupported versions are affected.