VulnerabilityAnalyzed

CVE-2025-54423

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.

MEDIUM 6.1EPSS 0.40%

Does this matter?

Lower severity and a low EPSS score (0.40%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.40% probability · 33th percentile
CISA KEV: Not listed
Weakness: CWE-79
Affected: 9001/copyparty
Source: security-advisories@github.com

References

https://github.com/9001/copyparty/commit/895880aeb0be0813ddf732487596633f8f9fc3a6Patch
https://github.com/9001/copyparty/releases/tag/v1.18.5Release Notes
https://github.com/9001/copyparty/security/advisories/GHSA-9q4r-x2hj-jmvrExploit, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.