How severe is CVE-2009-3892?

CVE-2009-3892 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2009-3892 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3892?

CVE-2009-3892 primarily affects Bestpractical Rt. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-3892?

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

When was CVE-2009-3892 published?

CVE-2009-3892 was published on 2009-11-17 and last updated on 2026-06-16.

CVE-2009-3892

CVE-2009-3892 is a medium-severity vulnerability in Bestpractical Rt with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Bestpractical Rt
Published: 2009-11-17
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in Best Practical Solutions RT 3.6.x before 3.6.9, 3.8.x before 3.8.5, and other 3.4.6 through 3.8.4 versions allows remote attackers to inject arbitrary web script or HTML via certain Custom Fields.

Frequently asked questions

What is CVE-2009-3892?: Cross-site scripting (XSS) vulnerability in Best Practical Solutions RT 3.6.x before 3.6.9, 3.8.x before 3.8.5, and other 3.4.6 through 3.8.4 versions allows remote attackers to inject arbitrary web script or HTML via certain Custom Fields.
How severe is CVE-2009-3892?: CVE-2009-3892 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2009-3892 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3892?: CVE-2009-3892 primarily affects Bestpractical Rt. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3892?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-3892 published?: CVE-2009-3892 was published on 2009-11-17 and last updated on 2026-06-16.

References

Affected products (15)

cpe:2.3:a:bestpractical:rt:3.4.6:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.6.0:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.6.1:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.6.2:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.6.3:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.6.4:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.6.5:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.6.6:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.6.7:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.6.8:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.8.0:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.8.1:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.8.2:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.8.3:*:*:*:*:*:*:*
cpe:2.3:a:bestpractical:rt:3.8.4:*:*:*:*:*:*:*

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