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Vulnerabilities

Security incident · CVE-2025-54423

copyparty is a portable file server.

Published Jul 28, 2025 · catalog updated Jul 28, 2025 · copyparty is a portable

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-54423. EPSS is 0.47%. Act only if a listed version of copyparty is a portable is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (copyparty is a portable).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium5.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.47%
Remediation
Version ranges on file
Affected products
vendor 9001 copyparty < 1.18.5

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor 9001 copyparty < 1.18.5< 1.18.5

How to fix CVE-2025-54423

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-54423. EPSS is 0.47%. Act only if a listed version of copyparty is a portable is installed.

Which versions are affected?

Compare what you have installed with 9001 copyparty < 1.18.5 < 1.18.5. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.47%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 28, 2025 · EUVD

    Detected

    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.

  2. Jul 28, 2025 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-54423

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-54423

    30-day exploitation probability 0.47%

    first.org
  • EUVDVulnerability recordEUVD-2025-22945

    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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 29, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 21, 2026