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Vulnerabilities

Vulnerability · CVE-2004-0820

Winamp .wsz Skin File Vulnerability

Published Aug 25, 2004 · catalog updated Aug 25, 2004 · Winamp .wsz Skin File

Patch now

CVE-2004-0820 is in the CISA known-exploited catalog. Confirm Winamp .wsz Skin File against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Winamp .wsz Skin File).
  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
2.54%
Remediation
Remediation guidance
Affected products
vendor nullsoft winamp

Winamp before 5.0.4 allows remote attackers to execute arbitrary script in the Local computer zone via script in HTML files that are referenced from XML files contained in a .wsz skin file.

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 nullsoft winampversion unspecified

How to fix CVE-2004-0820

What to do

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

Should you patch?

CVE-2004-0820 is in the CISA known-exploited catalog. Confirm Winamp .wsz Skin File against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 2.54%. The CISA KEV listing is the exploitation evidence. 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.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 25, 2004 · VulnCheck KEV

    Detected

    Winamp before 5.0.4 allows remote attackers to execute arbitrary script in the Local computer zone via script in HTML files that are referenced from XML files contained in a .wsz skin file.

  2. Aug 25, 2004 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2004-0820

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2004-0820

    30-day exploitation probability 2.5%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2004-0820

    Winamp before 5.0.4 allows remote attackers to execute arbitrary script in the Local computer zone via script in HTML files that are referenced from XML files contained in a .wsz skin file.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.