| Package | Affected versions | Patched versions |
|---|---|---|
| moodle/moodle | ≥ 4.3.0, < 4.3.4 | 4.3.4 |
| moodle | ≥ 4.3.0, < 4.3.4 | 4.3.4 |
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.
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