How severe is CVE-2009-4187?

CVE-2009-4187 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2009-4187 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4187?

CVE-2009-4187 primarily affects Sun Java System Portal Server. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-4187?

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

When was CVE-2009-4187 published?

CVE-2009-4187 was published on 2009-12-03 and last updated on 2026-06-16.

CVE-2009-4187

CVE-2009-4187 is a medium-severity vulnerability in Sun Java System Portal Server 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: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Sun Java System Portal Server
Published: 2009-12-03
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in the Gateway component in Sun Java System Portal Server 6.3.1, 7.1, and 7.2 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2009-4187?: Multiple cross-site scripting (XSS) vulnerabilities in the Gateway component in Sun Java System Portal Server 6.3.1, 7.1, and 7.2 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2009-4187?: CVE-2009-4187 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2009-4187 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4187?: CVE-2009-4187 primarily affects Sun Java System Portal Server. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-4187?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-4187 published?: CVE-2009-4187 was published on 2009-12-03 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:sun:java_system_portal_server:7.1:*:*:*:*:*:*:*
cpe:2.3:a:sun:java_system_portal_server:7.2:*:*:*:*:*:*:*
cpe:2.3:a:sun:java_system_portal_server:6.3.1:*:*:*:*:*:*:*
cpe:2.3:a:sun:java_system_portal_server:6.3.1:*:linux:*:*:*:*:*
cpe:2.3:a:sun:java_system_portal_server:7.1:*:linux:*:*:*:*:*
cpe:2.3:a:sun:java_system_portal_server:7.2:*:linux:*:*:*:*:*

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