XSS in 9001 Copyparty

CVE-2025-27145

copyparty, a portable file server, has a DOM-based cross-site scripting vulnerability in versions prior to 1.16.15. The vulnerability is considered low-risk. By handing someone a maliciously-named file, and then tricking them into dragging…

EPSS: 0.003 (53.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.6 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-27145?
CVE-2025-27145 is a low-severity vulnerability in 9001 Copyparty, classified under Improper Neutralization of Script in Attributes in a Web Page. CVSS score: 3.6/10. Published 2025-02-25.
How severe is CVE-2025-27145?
Low severity. CVSS v3 base score is 3.6 out of 10.
Is CVE-2025-27145 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.