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TI-2025-34360 Aliases CVE-2025-54589GHSA-8mx2-rjh8-q3jq

copyparty Reflected XSS via Filter Parameter

Priority LOW 33CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02375 83rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed copyparty (9001): 1.18.7copyparty (PyPI): 1.18.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
9001copypartybefore 1.18.71.18.7Patch availableCNA
—copyparty (PyPI)before 1.18.71.18.7Patch availableGHSA-8mx2-rjh8-q3jq
  • copyparty Vendor9001 Affected before 1.18.7 Fixed in 1.18.7 Patch available CNA
  • copyparty (PyPI) Vendor— Affected before 1.18.7 Fixed in 1.18.7 Patch available GHSA-8mx2-rjh8-q3jq

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:9001:copyparty:*:*:*:*:*:*:*:*before 1.18.7Vulnerable9001
  • cpe:2.3:a:9001:copyparty:*:*:*:*:*:*:*:* Versions before 1.18.7 Vulnerable ·9001

Remediation

  • Fix · CNA copyparty (9001) Fixed in 1.18.7
  • Fix · GHSA-8mx2-rjh8-q3jq copyparty (PyPI) Fixed in 1.18.7 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-54589
  2. 2026-10-03 Alias added: GHSA-8mx2-rjh8-q3jq

References

Exploit 1

Patch 1

Advisory 1

Other 2

  • TI-2025-34551 Copyparty is vulnerable to Regex Denial of Service (ReDoS) attacks through "Recent Uploads" page CVSS 3.1HIGH 7.5
  • TI-2023-19082 Path traversal in copyparty CVSS 3.1HIGH 7.5
  • TI-2023-21990 Cross Site Scripting vulnerability in copyparty before 1.9.2 allows a local attacker to… CVSS 3.1HIGH 7.8
  • TI-2023-19881 copyparty vulnerable to reflected cross-site scripting via k304 parameter CVSS 3.1MEDIUM 6.3
  • TI-2025-34228 copyparty has a DOM-Based XSS vulnerability when displaying multimedia metadata CVSS 3.1MEDIUM 6.1
  • TI-2025-20002 copyparty renders unsanitized filenames as HTML when user uploads empty files CVSS 3.1MEDIUM 6.1
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences