CVE-2025-54423— copyparty has a DOM-Based XSS vulnerability when displaying multimedia metadata
Quick assessment
Affected
9001 copyparty
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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 1.18.4及之前版本存在跨站脚本漏洞，该漏洞源于音乐文件多媒体标签清理不当，可能导致执行任意JavaScript代码。
Possible ATT&CK Techniques 1 AI
T1059.007 · JavaScript
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I. Basic Information for CVE-2025-54423
Vulnerability Information
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Vulnerability Title
copyparty has a DOM-Based XSS vulnerability when displaying multimedia metadata
Source: CVE Program / CVE List V5
Vulnerability Description
copyparty is a portable file server. In versions up to and including versions 1.18.4, an unauthenticated attacker is able to execute arbitrary JavaScript code in a victim's browser due to improper sanitization of multimedia tags in music files, including m3u files. This is fixed in version 1.18.5.
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:N
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 1.18.4及之前版本存在跨站脚本漏洞，该漏洞源于音乐文件多媒体标签清理不当，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
II. Public POCs for CVE-2025-54423
| # | POC Description | Source Link | Shenlong Link |
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IV. Related Vulnerabilities
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CVE-2026-93353
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Copyparty: file/dirkey confusion -
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Same vendor: 9001
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CVE-2026-93353
copyparty SFTP Volume Restriction Bypass via mkdir/rmdir/cha -
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Copyparty: file/dirkey confusion -
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Copyparty has unexpected JavaScript execution via crafted UR -
CVE-2026-32108
Copyparty ftp/sftp: Sharing a single file did not fully rest -
CVE-2026-30974
Copyparty volflag `nohtml` did not block javascript in svg f
Same weakness: CWE-79
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V. Comments for CVE-2025-54423
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