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CVE-2023-38501— copyparty vulnerable to reflected cross-site scripting via k304 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 1.8.7之前版本存在跨站脚本漏洞，该漏洞源于参数k304和setck存在反射型跨站脚本（XSS）漏洞。

CVSS 6.3 · Medium EPSS 9.25% · P95

Public Exploits 2

ExploitDB · 1 EDB-51635 [webapps]
Nuclei · 1 CVE-2023-38501.yaml [template]
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I. Basic Information for CVE-2023-38501

Vulnerability Information
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Vulnerability Title
copyparty vulnerable to reflected cross-site scripting via k304 parameter
Source: CVE Program / CVE List V5
Vulnerability Description
copyparty is file server software. Prior to version 1.8.7, the application contains a reflected cross-site scripting via URL-parameter `?k304=...` and `?setck=...`. The worst-case outcome of this is being able to move or delete existing files on the server, or upload new files, using the account of the person who clicks the malicious link. It is recommended to change the passwords of one's copyparty accounts, unless one have inspected one's logs and found no trace of attacks. Version 1.8.7 contains a patch for the issue.
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 跨站脚本漏洞
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 1.8.7之前版本存在跨站脚本漏洞，该漏洞源于参数k304和setck存在反射型跨站脚本（XSS）漏洞。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
9001 copyparty < 1.8.7 -

II. Public POCs for CVE-2023-38501

# POC Description Source Link Shenlong Link
1 Copyparty is a portable file server. Versions prior to 1.8.6 are subject to a reflected cross-site scripting (XSS) Attack.Vulnerability that exists in the web interface of the application could allow an attacker to execute malicious javascript code by tricking users into accessing a malicious link. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-38501.yaml POC Details
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III. Intelligence Information for CVE-2023-38501

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Patches & Fixes for CVE-2023-38501 (1)

Vendor Advisories for CVE-2023-38501 (1)

Exploits & Public PoCs for CVE-2023-38501 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2023-38501

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