{"id":"GHSA-r2wx-46gp-rp3h","aliases":["BIT-moodle-2024-33999","CVE-2024-33999"],"title":"Moodle Improper Input Validation","titleSource":"OSV","descriptionSource":"OSV","declaredSeverity":"HIGH","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directly.","severity":"high","score":null,"published":"2024-05-31T21:30:53.000Z","modified":"2025-05-31T06:26:56.539Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"moodle/moodle","sources":[{"name":"OSV · GHSA-r2wx-46gp-rp3h","url":"https://osv.dev/vulnerability/GHSA-r2wx-46gp-rp3h"}],"ranges":[{"events":[{"introduced":"4.3.0"},{"fixed":"4.3.4"}],"type":"ECOSYSTEM"}],"versions":["v4.3.0","v4.3.1","v4.3.2","v4.3.3"],"fixed":["4.3.4"]}],"sourceAffected":[],"references":["https://nvd.nist.gov/vuln/detail/CVE-2024-33999","https://github.com/moodle/moodle","https://moodle.org/mod/forum/discuss.php?d=458387","http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-80878"],"sources":[{"name":"OSV","id":"GHSA-r2wx-46gp-rp3h","modified":"2025-05-31T06:26:56.539177Z","url":"https://osv.dev/vulnerability/GHSA-r2wx-46gp-rp3h"}],"assessments":[],"products":[],"remediation":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T09:15:31.408Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}