{"id":"CVE-2021-3989","aliases":["GHSA-f545-vpwp-r9j7"],"url":"https://o3.security/vulnerability/CVE-2021-3989","summary":"showdoc is vulnerable to URL Redirection to Untrusted Site","details":"showdoc is vulnerable to URL Redirection to Untrusted Site","published":"2021-12-01T11:15:07.923Z","modified":"2026-08-07T17:02:37.936983Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":{"score":0.00761,"percentile":0.52174,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"showdoc/showdoc","fixedVersion":"2.9.13"}],"fix":{"url":"https://github.com/star7th/showdoc/commit/335afc7ed6d6627c3d0434aa9acc168c77117614","label":"star7th/showdoc@335afc7"},"references":[{"type":"FIX","url":"https://github.com/star7th/showdoc/commit/335afc7ed6d6627c3d0434aa9acc168c77117614"},{"type":"FIX","url":"https://huntr.dev/bounties/ffc61eff-efea-42c5-92c2-e043fdf904d5"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T17:02:37.936983Z"}}