{"id":"CVE-2026-27948","aliases":["GHSA-62cr-6wp5-q43h","PYSEC-2026-2136"],"url":"https://o3.security/vulnerability/CVE-2026-27948","summary":"Copyparty vulnerable to eflected cross-site scripting via setck parameter","details":"Copyparty is a portable file server. In versions prior to 1.20.9, an XSS allows for reflected cross-site scripting via URL-parameter `?setck=...`. Version 1.20.9 fixes the issue.","published":"2026-02-26T01:32:15.184Z","modified":"2026-07-15T01:49:00.817037924Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"copyparty","fixedVersion":"1.20.9"}],"fix":{"url":"https://github.com/9001/copyparty/commit/31b2801fd041f803f4a3d5c12c7d7cb5419048bc","label":"9001/copyparty@31b2801"},"references":[{"type":"ADVISORY","url":"https://github.com/9001/copyparty/security/advisories/GHSA-62cr-6wp5-q43h"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27948.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27948"},{"type":"FIX","url":"https://github.com/9001/copyparty/commit/31b2801fd041f803f4a3d5c12c7d7cb5419048bc"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:00.817037924Z"}}