CVE-2025-54423: PYSEC-2026-1277 - copyparty has DOM-Based XSS vulnerability when displaying multimedia metadata

CVE-2025-54423 · Severity: low · CVSS 3.1 · Published 2026-07-07

copyparty has DOM-Based XSS vulnerability when displaying multimedia metadata

Technologies: copyparty (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2025-54423 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-54423 being exploited in the wild.
How severe is CVE-2025-54423?
Low severity, with a CVSS score of 3.1, published 7 July 2026.
Which products and versions are affected?
copyparty (PyPI) ECOSYSTEM:introduced=0,fixed=1.18.5.
Is there a fix for CVE-2025-54423?
Yes. copyparty (PyPI): upgrade to 1.18.5 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-54423?
Check whether you run copyparty (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • copyparty (PyPI): upgrade to 1.18.5 or later
    pip install "copyparty>=1.18.5"

Affected products

  • copyparty (PyPI) ECOSYSTEM:introduced=0,fixed=1.18.5

Identifiers

  • CVE-2025-54423
  • GHSA-9q4r-x2hj-jmvr
  • PYSEC-2026-1277

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