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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-79"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27948.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:9001:copyparty:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.20.9"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "31b2801fd041f803f4a3d5c12c7d7cb5419048bc"
}
],
"source": "REFERENCES_COMMIT"
}
]
}