CVE-2025-54423

low-risk
Published 2025-07-28

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.

Do I need to act?

-
0.10% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.4/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

9001

References (3)

Patch https://github.com/9001/copyparty/commit/895880aeb0be0813ddf732487596633f8f9fc3a...
Release Notes https://github.com/9001/copyparty/releases/tag/v1.18.5
Exploit https://github.com/9001/copyparty/security/advisories/GHSA-9q4r-x2hj-jmvr
26
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal