{"cve":"CVE-2021-27578","nvd":{"published":"2021-09-02T17:15:08.453","modified":"2026-06-17T03:45:09.880","status":"Modified","description":"Cross Site Scripting vulnerability in markdown interpreter of Apache Zeppelin allows an attacker to inject malicious scripts. This issue affects Apache Zeppelin Apache Zeppelin versions prior to 0.9.0.","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":["http://www.openwall.com/lists/oss-security/2021/09/02/3","https://lists.apache.org/thread.html/r31012f2c8e39a5e12e14c1de030012cb8b51c037d953d73b291b7b50%40%3Cusers.zeppelin.apache.org%3E","https://lists.apache.org/thread.html/r90590aa5ea788128ecc2e822e1e64d5200b4cb92b06707b38da4cb3d%40%3Cannounce.apache.org%3E","https://lists.apache.org/thread.html/r90590aa5ea788128ecc2e822e1e64d5200b4cb92b06707b38da4cb3d%40%3Cusers.zeppelin.apache.org%3E","https://lists.apache.org/thread.html/r90590aa5ea788128ecc2e822e1e64d5200b4cb92b06707b38da4cb3d%40%3Cusers.zeppelin.apache.org%3E"],"products":["apache:zeppelin"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2021-27578","score":0.03232,"percentile":0.88264,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-mf7q-gw5f-q8jj","url":"https://osv.dev/vulnerability/GHSA-mf7q-gw5f-q8jj","summary":"Cross-site Scripting in Apache Zeppelin","modified":"2024-02-16T08:08:39.299528Z","packages":[{"ecosystem":"Maven","name":"org.apache.zeppelin:zeppelin","purl":"pkg:maven/org.apache.zeppelin/zeppelin","ranges":["<0.9.0"],"fixed":["0.9.0"]}]}],"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."]}