CVE-2020-14320
Moodle reflected XSS Vulnerability
In Moodle before 3.9.1, 3.8.4 and 3.7.7, the filter in the admin task log required extra sanitizing to prevent a reflected XSS risk.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In Moodle before 3.9.1, 3.8.4 and 3.7.7, the filter in the admin task log required extra sanitizing to prevent a reflected XSS risk.
- Record
CVE-2020-14320- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
In Moodle before 3.9.1, 3.8.4 and 3.7.7, the filter in the admin task log required extra sanitizing to prevent a reflected XSS risk.
- Record
CVE-2020-14320- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2022-6550 No score
In Moodle before 3.9.1, 3.8.4 and 3.7.7, the filter in the admin task log required extra sanitizing to prevent a reflected XSS risk.
- Record
EUVD-2022-6550- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fcpw-vqh5-6qwj
Moodle reflected XSS Vulnerability
In Moodle before 3.9.1, 3.8.4 and 3.7.7, the filter in the admin task log required extra sanitizing to prevent a reflected XSS risk.
- Record
GHSA-fcpw-vqh5-6qwj- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
In Moodle before 3.9.1, 3.8.4 and 3.7.7, the filter in the admin task log required extra sanitizing to prevent a reflected XSS risk.
- Record
CVE-2020-14320- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-fcpw-vqh5-6qwj
Moodle reflected XSS Vulnerability
In Moodle before 3.9.1, 3.8.4 and 3.7.7, the filter in the admin task log required extra sanitizing to prevent a reflected XSS risk.
- Record
GHSA-fcpw-vqh5-6qwj- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-14320
In Moodle before 3.9.1, 3.8.4 and 3.7.7, the filter in the admin task log required extra sanitizing to prevent a reflected XSS risk.
- Record
UBUNTU-CVE-2020-14320- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVBIT-moodle-2020-14320 No score
In Moodle before 3.9.1, 3.8.4 and 3.7.7, the filter in the admin task log required extra sanitizing to prevent a reflected XSS risk.
- Record
BIT-moodle-2020-14320- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
moodle/moodlePackagist |
3.9 to 3.9 | 3.9.1 |
moodle/moodlePackagist |
3.8 to 3.8.3 | 3.8.4 |
moodle/moodlePackagist |
3.7 to 3.7.6 | 3.7.7 |
moodleBitnami |
3.7.0 up to 3.7.7, 3.8.0 up to 3.8.4, 3.9.0 up to 3.9.1 | 3.7.73.8.43.9.1 |
moodle/moodlePackagist |
3.9 up to 3.9.1, plus listed versions v3.9.0v3.9.0-betav3.9.0-rc1v3.9.0-rc2v3.9.0-rc3 |
3.9.1 |
moodle/moodlePackagist |
3.8 up to 3.8.4, plus listed versions v3.8.0v3.8.0-betav3.8.0-rc1v3.8.1v3.8.2v3.8.3 |
3.8.4 |
moodle/moodlePackagist |
3.7 up to 3.7.7, plus listed versions v3.7.0v3.7.0-betav3.7.0-rc1v3.7.0-rc2v3.7.1 Show 5 moreShow lessv3.7.2v3.7.3v3.7.4v3.7.5v3.7.6 |
3.7.7 |
moodleUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 2.7.9+dfsg-12.7.10+dfsg-12.7.11+dfsg-12.7.11+dfsg-22.7.12+dfsg-13.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1 |
None known |
moodleUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 3.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-14320 is a medium vulnerability (CVSS 6.1) in Moodle, published August 16, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.72%, the 54th percentile. Fixed in moodle/moodle 3.9.1.