CVE-2024-33999
Moodle Improper Input Validation
9.8
CRITICAL
CVSS 3.1
EPSS 0.81%
Description
Unsafe direct use of $_SERVER['HTTP_REFERER'] in admin/tool/mfa/index.php. The referrer URL used by MFA required additional sanitizing, rather than being used directly.
How to fix CVE-2024-33999
To remediate CVE-2024-33999, upgrade the affected package to a fixed version below.
- Bitnami/moodle—upgrade to 4.3.4 or later
- —upgrade to 4.3.4 or later
Is CVE-2024-33999 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 4.3.0, < 4.3.4
- >= 4.3.0, < 4.3.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |