Vulnerability Name:

CVE-2021-32475 (CCN-221919)

Assigned:2021-05-17
Published:2021-05-17
Updated:2022-03-18
Summary: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.
CVSS v3 Severity:5.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
6.4 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N)
6.1 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:3.5 Low (CVSS v2 Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-79
Vulnerability Consequences:Cross-Site Scripting
References:Source: MITRE
Type: CNA
CVE-2021-32475

Source: XF
Type: UNKNOWN
moodle-cve202132475-xss(221919)

Source: CCN
Type: Moodle Security Advisory MSA-21-0015
Stored XSS in quiz grading report via user ID number

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/a:moodle:moodle:3.5.0:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.10:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.10.3:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.9.6:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.8.8:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.5.17:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    moodle moodle 3.5.0
    moodle moodle 3.10
    moodle moodle 3.10.3
    moodle moodle 3.9.6
    moodle moodle 3.8.8
    moodle moodle 3.5.17