How severe is CVE-2008-3253?

CVE-2008-3253 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2008-3253 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-3253?

CVE-2008-3253 primarily affects Citrix Xenserver. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-3253?

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

When was CVE-2008-3253 published?

CVE-2008-3253 was published on 2008-07-22 and last updated on 2026-06-16.

CVE-2008-3253

CVE-2008-3253 is a medium-severity vulnerability in Citrix Xenserver 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% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Citrix Xenserver
Published: 2008-07-22
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in the XenAPI HTTP interfaces in Citrix XenServer Express, Standard, and Enterprise Edition 4.1.0; Citrix XenServer Dell Edition (Express and Enterprise) 4.1.0; and HP integrated Citrix XenServer (Select and Enterprise) 4.1.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2008-3253?: Cross-site scripting (XSS) vulnerability in the XenAPI HTTP interfaces in Citrix XenServer Express, Standard, and Enterprise Edition 4.1.0; Citrix XenServer Dell Edition (Express and Enterprise) 4.1.0; and HP integrated Citrix XenServer (Select and Enterprise) 4.1.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2008-3253?: CVE-2008-3253 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2008-3253 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-3253?: CVE-2008-3253 primarily affects Citrix Xenserver. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-3253?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-3253 published?: CVE-2008-3253 was published on 2008-07-22 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:a:citrix:xenserver:4.1.0:*:enterprise:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:4.1.0:*:enterprise_dell_edition:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:4.1.0:*:enterprise_hp_integrated:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:4.1.0:*:express:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:4.1.0:*:express_dell_edition:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:4.1.0:*:select_hp_integrated:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:4.1.0:*:standard:*:*:*:*:*

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