A vulnerability was found in Moodle which exists due to insufficient validation of the HTTP request origin in course redirect URL. A user's CSRF token was unnecessarily included in the URL when being redirected to a course they have just restored. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website. This flaw allows an attacker to perform cross-site request forgery attacks.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| moodle/moodle(Packagist) | 3.9.0 | 3.9.18 | N/A |
| moodle/moodle(Packagist) | 3.11.0 | 3.11.11 | N/A |
| moodle/moodle(Packagist) | 4.0.0 | 4.0.5 | N/A |
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