{"id":"CVE-2021-28796","aliases":["GHSA-f2c9-5jqw-3xh3"],"url":"https://o3.security/vulnerability/CVE-2021-28796","summary":"Cross-Site Scripting in Qiita-Markdown","details":"Increments Qiita::Markdown before 0.33.0 allows XSS in transformers.","published":"2021-03-18T16:15:15.153Z","modified":"2026-07-09T01:30:30.469079Z","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":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"RubyGems","name":"qiita-markdown","fixedVersion":"0.33.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://vuln.ryotak.me/advisories/15"},{"type":"FIX","url":"https://github.com/increments/qiita-markdown/compare/v0.32.0...v0.33.0"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T01:30:30.469079Z"}}