CVE-2026-27948

Medium

Description

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.

SeverityMedium
CVSS5.4
Exploit probability—
Product9001 Copyparty
PublishedFeb 26, 2026
First seenFeb 26, 2026

How to fix

Update
  • 9001 copyparty1.20.9 or later
  • copyparty1.20.9 or later

Affected products

ProductAffected versionsFixed in
9001 copypartyv < 1.20.91.20.9
copypartyPyPIv < 1.20.91.20.9

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CVE-2026-27948 · 9001 Copyparty · Dark Radar