CVE-2020-14320 json
Moodle reflected XSS Vulnerability
published 2022-08-16 4 y ago modified 2026-09-08 2 mo ago also BIT-moodle-2020-14320 , EUVD-2022-6550 , GHSA-fcpw-vqh5-6qwj
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- packagist moodle/moodle 3.7.7, 3.8.4, 3.9.1
- bitnami moodle 3.7.7, 3.8.4, 3.9.1
- moodle moodle 3.7.7, 3.8.4
Exploit prediction
0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| OSV | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | moodle/moodle | >=3.9, <3.9.1 >=3.8, <3.8.4 >=3.7, <3.7.7 |
3.9.1 3.8.4 3.7.7 |
| bitnami | moodle | >=3.7.0, <3.7.7 >=3.8.0, <3.8.4 >=3.9.0, <3.9.1 |
3.7.7 3.8.4 3.9.1 |
Affected products
- n/a Moodle
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
moodle.org
/mod/forum/discuss.php?d=407392
web, patch, vendor-advisory, advisory
-
github.com
/moodle/moodle/commit/c6ffe9588ebb02b73c33a09e5d8061f58acc1701
web
-
nvd.nist.gov
/vuln/detail/CVE-2020-14320
advisory, web
Sources
- CVE List CVE-2020-14320
- GitHub Advisory GHSA-fcpw-vqh5-6qwj
- NVD CVE-2020-14320
- OSV BIT-moodle-2020-14320
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.