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CVE-2025-54589— copyparty Reflected XSS via Filter Parameter

Quick assessment

Affected
9001 copyparty
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Copyparty是ed个人开发者的一个便携式文件服务器。 Copyparty 1.18.6及之前版本存在安全漏洞，该漏洞源于反射型跨站脚本漏洞，可能导致执行任意JavaScript代码。

CVSS 6.3 · Medium EPSS 2.38% · P83

Public Exploits 2

ExploitDB · 1 EDB-52390 [webapps]
Nuclei · 1 CVE-2025-54589.yaml [template]

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-54589

Vulnerability Information
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Vulnerability Title
copyparty Reflected XSS via Filter Parameter
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Copyparty 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Copyparty是ed个人开发者的一个便携式文件服务器。 Copyparty 1.18.6及之前版本存在安全漏洞，该漏洞源于反射型跨站脚本漏洞，可能导致执行任意JavaScript代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
9001 copyparty < 1.18.7 -

II. Public POCs for CVE-2025-54589

# POC Description Source Link Shenlong Link
1 PoC for CVE-2025-54589 – a reflected XSS vulnerability in Copyparty ≤ 1.18.6. https://github.com/byteReaper77/CVE-2025-54589 POC Details
2 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. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-54589.yaml POC Details
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III. Intelligence Information for CVE-2025-54589

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IV. Related Vulnerabilities

Same product: copyparty
Same vendor: 9001
Same weakness: CWE-79

V. Comments for CVE-2025-54589

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