CVE-2025-54423: medium-severity vulnerability in 9001 copyparty
copyparty has a DOM-Based XSS vulnerability when displaying multimedia metadata
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.4epss 0.5%
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/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Affected products
9001 · copypartyRelated CVEs — 9001 copyparty
In the same product, most dangerous first.
CVE-2023-37474HIGHPath traversal in copypartyEPSS 44.9%CVE-2023-38501MEDIUMcopyparty vulnerable to reflected cross-site scripting via k304 parameterEPSS 9.2%CVE-2025-54589MEDIUMcopyparty Reflected XSS via Filter ParameterEPSS 2.4%CVE-2025-54796HIGHCopyparty is vulnerable to Regex Denial of Service (ReDoS) attacks through "Recent Uploads" pageEPSS 0.5%CVE-2025-27145LOWcopyparty renders unsanitized filenames as HTML when user uploads empty filesEPSS 0.5%CVE-2026-30974MEDIUMCopyparty volflag `nohtml` did not block javascript in svg filesEPSS 0.4%