Vulnerability DatabaseCVE-2021-32475
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CVE-2021-32475
Published:March 11, 2022
Updated:May 17, 2026
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.
Affected Packages
moodle/moodle (PHP):
Affected version(s) >=v3.9.0 <v3.9.7
Fix Suggestion:
Update to version v3.9.7
moodle/moodle (PHP):
Affected version(s) >=v3.5.0 <v3.5.18
Fix Suggestion:
Update to version v3.5.18
moodle/moodle (PHP):
Affected version(s) >=v3.8.0 <v3.8.9
Fix Suggestion:
Update to version v3.8.9
moodle/moodle (PHP):
Affected version(s) >=v3.10.0 <v3.10.4
Fix Suggestion:
Update to version v3.10.4
Related Resources (3)
https://github.com/moodle/moodle
https://nvd.nist.gov/vuln/detail/CVE-2021-32475
https://moodle.org/mod/forum/discuss.php?d=422309
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CVSS v4
Base Score:
5.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-78
EPSS
Base Score:
0.32