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Vulnerability record · CVE-2025-54589 · published 31 July 2025

CVE-2025-54589: 9001 copyparty cross-site scripting vulnerability

99001 · Copyparty

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.

6.1 CVSS 3.1 Medium EPSS 2.4% · top 16.5% CWE-79 · Cross-site scriptingCWE-80 · CWE-80
6.1CVSS 3.1 base score
2.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/9001/copyparty/commit/a8705e611d05eeb22be5d3d7d9ab5c020fe54c62 Patch
https://github.com/9001/copyparty/releases/tag/v1.18.7 Release Notes
https://github.com/9001/copyparty/security/advisories/GHSA-8mx2-rjh8-q3jq ExploitVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-54589), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.