CVE-2025-54423

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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.4 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
GitHub_MCNA
5.4 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CISA-ADPADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 26%
VendorProductVersion
9001copyparty
𝑥
< 1.18.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/9001/copyparty/commit/895880aeb0be0813ddf732487596633f8f9fc3a6
https://github.com/9001/copyparty/releases/tag/v1.18.5
https://github.com/9001/copyparty/security/advisories/GHSA-9q4r-x2hj-jmvr