{"id":"CVE-2019-18210","aliases":["GHSA-q6vw-27c6-jv9c"],"url":"https://o3.security/vulnerability/CVE-2019-18210","summary":"Moodle Persistent Cross-site Scripting (XSS)","details":"Persistent XSS in /course/modedit.php of Moodle through 3.7.2 allows authenticated users (Teacher and above) to inject JavaScript into the session of another user (e.g., enrolled student or site administrator) via the introeditor[text] parameter. NOTE: the discoverer and vendor disagree on whether Moodle customers have a reasonable expectation that anyone authenticated as a Teacher can be trusted with the ability to add arbitrary JavaScript (this ability is not documented on Moodle's Teacher_role page). Because the vendor has this expectation, they have stated \"this report has been closed as a false positive, and not a bug.\"","published":"2020-02-11T14:15:17.877Z","modified":"2026-07-08T17:16:53.199921Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"epss":{"score":0.00791,"percentile":0.5316,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"moodle/moodle","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://docs.moodle.org/38/en/Teacher_role"},{"type":"ADVISORY","url":"https://gist.github.com/Danbardo/4a6b0fe8cb21ec6d7c54e6ac951bdb0a"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T17:16:53.199921Z"}}