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CVE-2025-54589GHSA-8MX2-RJH8-Q3JQPYSEC-2026-1276

copyparty Reflected XSS via Filter Parameter

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.18.7
1 on Exploit-DB, 1 proof of concept on GitHub, 1 Nuclei template
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

Copyparty is a portable file server. In versions 1.18.6 and below, when accessing the recent uploads page at `/?ru`, users can filter the results using an input field at the top. This field appends a filter parameter to the URL, which reflects its value directly into a `<script>` block without proper escaping, allowing for reflected Cross-Site Scripting (XSS) and can be exploited against both authenticated and unauthenticated users. This is fixed in version 1.18.7.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated
  4. Public exploit on Exploit-DB

    EDB-52390

Affected versions

  • 9001 copyparty

    fixed in 1.18.7

  • copypartyPyPI

    fixed in 1.18.7

References 6

GitHub · 9001/copyparty

Exploit-DB

GitHub · projectdiscovery/nuclei-templates

GitHub · byteReaper77/CVE-2025-54589