{"id":"CVE-2022-40313","aliases":["BIT-moodle-2022-40313","GHSA-jqgr-gh62-jf53"],"url":"https://o3.security/vulnerability/CVE-2022-40313","summary":"Moodle Stored Cross-site Scripting and page denial of service","details":"Recursive rendering of Mustache template helpers containing user input could, in some cases, result in an Cross-site Scripting risk or a page failing to load.","published":"2022-09-30T16:34:00Z","modified":"2026-08-12T03:51:27.149783201Z","cvss":{"score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L"},"epss":{"score":0.0056,"percentile":0.44084,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.9.17"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"3.11.10"},{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":"4.0.4"}],"fix":null,"references":[{"type":"WEB","url":"https://moodle.org/mod/forum/discuss.php?d=438392"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/40xxx/CVE-2022-40313.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-40313"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2128146"},{"type":"PACKAGE","url":"https://github.com/moodle/moodle"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:27.149783201Z"}}