CVE-2025-54423
Medium
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.
SeverityMedium
CVSS5.4
Exploit probability—
Product9001 Copyparty
PublishedJul 28, 2025
First seenJul 28, 2025
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- 9001 copyparty1.18.5 or later
- copyparty1.18.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| 9001 copyparty | v < 1.18.5 | 1.18.5 |
| copypartyPyPI | v < 1.18.5 | 1.18.5 |
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