{"id":"CVE-2021-3977","aliases":["GHSA-xg6r-5gx4-qxjm"],"url":"https://o3.security/vulnerability/CVE-2021-3977","summary":"invoiceninja is vulnerable to Cross-site Scripting","details":"invoiceninja is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","published":"2021-12-24T20:15:08.137Z","modified":"2026-08-07T19:46:52.298Z","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":"hillelcoren/invoice-ninja","fixedVersion":"5.3.35"}],"fix":{"url":"https://github.com/invoiceninja/invoiceninja/commit/1186eaa82375692d01d5ef3369c5b7bc7315b55f","label":"invoiceninja/invoiceninja@1186eaa"},"references":[{"type":"FIX","url":"https://github.com/invoiceninja/invoiceninja/commit/1186eaa82375692d01d5ef3369c5b7bc7315b55f"},{"type":"FIX","url":"https://huntr.dev/bounties/99c4ed09-b66f-474a-bd74-eeccf9339fde"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T19:46:52.298Z"}}