{"cve":"CVE-2021-28796","nvd":{"published":"2021-03-18T16:15:15.153","modified":"2026-06-17T03:46:52.623","status":"Modified","description":"Increments Qiita::Markdown before 0.33.0 allows XSS in transformers.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://github.com/increments/qiita-markdown/compare/v0.32.0...v0.33.0","https://vuln.ryotak.me/advisories/15","https://github.com/increments/qiita-markdown/compare/v0.32.0...v0.33.0","https://vuln.ryotak.me/advisories/15"],"products":["increments:qiita\\"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-28796","score":0.00774,"percentile":0.55771,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-f2c9-5jqw-3xh3","url":"https://osv.dev/vulnerability/GHSA-f2c9-5jqw-3xh3","summary":"Cross-Site Scripting in Qiita-Markdown","modified":"2024-02-16T08:20:36.032520Z","packages":[{"ecosystem":"RubyGems","name":"qiita-markdown","purl":"pkg:gem/qiita-markdown","ranges":["<0.33.0"],"fixed":["0.33.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}