CVE

CVE-2025-54589

6.3

CVSSmedium

Exploitable remotely over the internet · no authentication required · user interaction needed.

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.

Attack Vector

Network

Privileges Req.

None

User Interaction

Required

copyparty

Updated Sep 18, 2026View on NVD →

S4E scanner

mediumWeb Vulnerabilities~10 seconds

Copyparty <=1.18.6 - Cross-Site Scripting

Copyparty before 1.18.7 is vulnerable to reflected cross-site scripting (XSS) via the 'filter' parameter in the '/?ru' endpoint. Unsanitized user input is reflected in the HTML response, allowing attackers to execute arbitrary JavaScript in the context of the victim's browser. References: https://github.com/9001/copyparty https://secalerts.co/vulnerability/CVE-2025-54589 https://github.com/9001/copyparty/security/advisories/GHSA-8mx2-rjh8-q3jq https://nvd.nist.gov/vuln/detail/CVE-2025-54589 Remediation: Upgrade Copyparty to version 1.18.7 or later to mitigate this vulnerability.

Used 2.3k times · 1 assets checked · url

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CVE history: copyparty

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