{"id":"CVE-2021-4072","aliases":["GHSA-2xw8-j43j-5vxp"],"url":"https://o3.security/vulnerability/CVE-2021-4072","summary":"elgg is vulnerable to Cross-site Scripting","details":"elgg is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","published":"2021-12-24T14:15:07.327Z","modified":"2026-08-07T16:58:10.986580Z","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":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"elgg/elgg","fixedVersion":"3.3.24"}],"fix":{"url":"https://github.com/elgg/elgg/commit/c30b17bf75256ed3fcc84e2083147cc3951423d0","label":"elgg/elgg@c30b17b"},"references":[{"type":"FIX","url":"https://github.com/elgg/elgg/commit/c30b17bf75256ed3fcc84e2083147cc3951423d0"},{"type":"FIX","url":"https://huntr.dev/bounties/74034253-732a-4251-a0f9-eca5f576c955"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T16:58:10.986580Z"}}