XSS in 9001 Copyparty
CVE-2025-54589
Copyparty is a portable file server. In versions 1.18.6 and below, when accessing the recent uploads page at `/?ru`, users can filter the results using an input field at the top. This field appends a filter parameter to the URL, which reflects its value directly into a `<script>` block without proper escaping, allowing for reflected Cross-Site Scripting (XSS) and can be exploited against both authenticated and unauthenticated users. This is fixed in version 1.18.7.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.024 (83.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: -0.000
Affected products
- 9001 Copyparty — versions < 1.18.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/9001/copyparty/security/advisories/GHSA-8mx2-rjh8-q3jq (Exploit, Vendor Advisory)
- github.com/9001/copyparty/commit/a8705e611d05eeb22be5d3d7d9ab5c020fe54c62 (Patch)
- github.com/9001/copyparty/releases/tag/v1.18.7 (Release Notes)
Frequently asked questions
- What is CVE-2025-54589?
- CVE-2025-54589 is a medium-severity vulnerability in 9001 Copyparty, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2025-07-31.
- How severe is CVE-2025-54589?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2025-54589 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.