How severe is CVE-2006-4273?

CVE-2006-4273 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2006-4273 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4273?

CVE-2006-4273 primarily affects Jelsoft Vbulletin. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-4273?

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

When was CVE-2006-4273 published?

CVE-2006-4273 was published on 2006-08-21 and last updated on 2026-06-16.

CVE-2006-4273

CVE-2006-4273 is a medium-severity vulnerability in Jelsoft Vbulletin with a CVSS 2.0 base score of 6.8. 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 6.8)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Jelsoft Vbulletin
Published: 2006-08-21
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in Jelsoft vBulletin 3.5.4 and 3.6.0 allows remote attackers to inject arbitrary web script or HTML by uploading an attachment with a .pdf extension that contains JavaScript, which is processed as script by Microsoft Internet Explorer 6.

Frequently asked questions

What is CVE-2006-4273?: Cross-site scripting (XSS) vulnerability in Jelsoft vBulletin 3.5.4 and 3.6.0 allows remote attackers to inject arbitrary web script or HTML by uploading an attachment with a .pdf extension that contains JavaScript, which is processed as script by Microsoft Internet Explorer 6.
How severe is CVE-2006-4273?: CVE-2006-4273 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2006-4273 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4273?: CVE-2006-4273 primarily affects Jelsoft Vbulletin. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-4273?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-4273 published?: CVE-2006-4273 was published on 2006-08-21 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:jelsoft:vbulletin:3.5.4:*:*:*:*:*:*:*
cpe:2.3:a:jelsoft:vbulletin:3.6.0:*:*:*:*:*:*:*

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