{"cve":"CVE-2021-44791","nvd":{"published":"2022-07-07T19:15:07.790","modified":"2026-06-17T04:12:51.077","status":"Modified","description":"In Apache Druid 0.22.1 and earlier, certain specially-crafted links result in unescaped URL parameters being sent back in HTML responses. This makes it possible to execute reflected XSS attacks.","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://lists.apache.org/thread/lh2kcl4j45q7xj4w6rqf6kwf0mvyp2o6","https://lists.apache.org/thread/lh2kcl4j45q7xj4w6rqf6kwf0mvyp2o6"],"products":["apache:druid"],"source":"nvd","synced_at":"2026-10-19T21:33:44.859608815+00:00"},"epss":{"cve":"CVE-2021-44791","score":0.02221,"percentile":0.82684,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8rmv-98m4-g5c6","url":"https://osv.dev/vulnerability/GHSA-8rmv-98m4-g5c6","summary":"Apache Druid before 0.23.0 vulnerable to reflected XSS via unescaped URL parameters","modified":"2023-11-08T04:07:18.475229Z","packages":[{"ecosystem":"Maven","name":"org.apache.druid:druid","purl":"pkg:maven/org.apache.druid/druid","ranges":["<0.23.0"],"fixed":["0.23.0"]}]}],"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."]}