{"cve":"CVE-2018-6333","nvd":{"published":"2018-12-31T23:29:00.283","modified":"2026-06-17T02:01:40.780","status":"Modified","description":"The hhvm-attach deep link handler in Nuclide did not properly sanitize the provided hostname parameter when rendering. As a result, a malicious URL could be used to render HTML and other content inside of the editor's context, which could potentially be chained to lead to code execution. This issue affected Nuclide prior to v0.290.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-20","CWE-79"],"references":["https://github.com/facebook/nuclide/commit/65f6bbd683404be1bb569b8d1be84b5d4c74a324","https://github.com/facebook/nuclide/commit/65f6bbd683404be1bb569b8d1be84b5d4c74a324"],"products":["facebook:nuclide"],"source":"nvd","synced_at":"2026-10-19T20:54:36.112582389+00:00"},"epss":{"cve":"CVE-2018-6333","score":0.02332,"percentile":0.83553,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-r83x-wj75-v89r","url":"https://osv.dev/vulnerability/GHSA-r83x-wj75-v89r","summary":"Nuclide Improper Input Validation","modified":"2023-11-08T04:00:21.148313Z","packages":[{"ecosystem":"npm","name":"nuclide","purl":"pkg:npm/nuclide","ranges":["<0.290.0"],"fixed":["0.290.0"]}]}],"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."]}