How severe is CVE-2004-0820?

CVE-2004-0820 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2004-0820 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-0820?

CVE-2004-0820 primarily affects Nullsoft Winamp. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-0820?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2004-0820 published?

CVE-2004-0820 was published on 2004-08-28 and last updated on 2026-06-16.

CVE-2004-0820

CVE-2004-0820 is a medium-severity vulnerability in Nullsoft Winamp with a CVSS 2.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Nullsoft Winamp
Published: 2004-08-28
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-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.
How severe is CVE-2004-0820?: CVE-2004-0820 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2004-0820 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0820?: CVE-2004-0820 primarily affects Nullsoft Winamp. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0820?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-0820 published?: CVE-2004-0820 was published on 2004-08-28 and last updated on 2026-06-16.

References

Affected products (33)

cpe:2.3:a:nullsoft:winamp:2.4:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.5e:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.10:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.24:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.50:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.60:*:full:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.60:*:lite:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.61:*:full:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.62:*:standard:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.64:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.64:*:standard:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.65:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.70:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.70:*:full:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.71:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.72:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.73:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.73:*:full:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.74:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.75:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.76:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.77:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.78:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.79:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.80:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.81:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:2.91:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:3.0:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:3.1:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:5.01:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:5.02:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:5.03:*:*:*:*:*:*:*
cpe:2.3:a:nullsoft:winamp:5.04:*:*:*:*:*:*:*

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