CVE-2021-36396
Moodle vulnerable to Server-Side Request Forgery
7.5
HIGH
CVSS 3.1
EPSS 1.9%
Description
In Moodle, insufficient redirect handling made it possible to blindly bypass cURL blocked hosts/allowed ports restrictions, resulting in a blind SSRF risk.
How to fix CVE-2021-36396
To remediate CVE-2021-36396, upgrade the affected package to a fixed version below.
- Bitnami/moodle—upgrade to 3.9.8 or later
- Packagist/moodle/moodle—upgrade to 3.11.1 or later
Is CVE-2021-36396 being exploited?
Low — EPSS is 1.9%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 3.9.8, >= 3.10.0, < 3.10.5, >= 3.11.0, < 3.11.1
- >= 3.11.0-beta, < 3.11.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |