CVE-2026-27948: 9001 Copyparty

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• 9001 Copyparty: before 1.20.9 (fixed in 1.20.9)

Published 2026-02-26. Last modified 2026-06-17.