How severe is CVE-2008-3422?

CVE-2008-3422 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2008-3422 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-3422?

CVE-2008-3422 primarily affects Mono. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-3422?

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

When was CVE-2008-3422 published?

CVE-2008-3422 was published on 2008-07-31 and last updated on 2026-06-16.

CVE-2008-3422

CVE-2008-3422 is a medium-severity vulnerability in Mono 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% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mono
Published: 2008-07-31
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in the ASP.net class libraries in Mono 2.0 and earlier allow remote attackers to inject arbitrary web script or HTML via crafted attributes related to (1) HtmlControl.cs (PreProcessRelativeReference), (2) HtmlForm.cs (RenderAttributes), (3) HtmlInputButton (RenderAttributes), (4) HtmlInputRadioButton (RenderAttributes), and (5) HtmlSelect (RenderChildren).

Frequently asked questions

What is CVE-2008-3422?: Multiple cross-site scripting (XSS) vulnerabilities in the ASP.net class libraries in Mono 2.0 and earlier allow remote attackers to inject arbitrary web script or HTML via crafted attributes related to (1) HtmlControl.cs (PreProcessRelativeReference), (2) HtmlForm.cs (RenderAttributes), (3) HtmlInputButton (RenderAttributes), (4) HtmlInputRadioButton (RenderAttributes), and (5) HtmlSelect (RenderChildren).
How severe is CVE-2008-3422?: CVE-2008-3422 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2008-3422 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-3422?: CVE-2008-3422 primarily affects Mono. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-3422?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-3422 published?: CVE-2008-3422 was published on 2008-07-31 and last updated on 2026-06-16.

References

Affected products (20)

cpe:2.3:a:mono:mono:1.0:*:*:*:*:*:*:*
cpe:2.3:a:mono:mono:1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:mono:mono:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:mono:mono:1.1.8.3:*:*:*:*:*:*:*
cpe:2.3:a:mono:mono:1.1.13:*:*:*:*:*:*:*
cpe:2.3:a:mono:mono:1.1.13.4:*:*:*:*:*:*:*
cpe:2.3:a:mono:mono:1.1.13.6:*:*:*:*:*:*:*
cpe:2.3:a:mono:mono:1.1.13.7:*:*:*:*:*:*:*
cpe:2.3:a:mono:mono:1.1.17:*:*:*:*:*:*:*
cpe:2.3:a:mono:mono:1.1.17.1:*:*:*:*:*:*:*
cpe:2.3:a:mono:mono:1.1.18:*:*:*:*:*:*:*
cpe:2.3:a:mono:mono:1.2.5.1:*:*:*:*:*:*:*
cpe:2.3:a:mono_project:mono:*:*:*:*:*:*:*:*
cpe:2.3:a:mono_project:mono:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:mono_project:mono:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:mono_project:mono:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:mono_project:mono:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:mono_project:mono:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:mono_project:mono:1.2.6:*:*:*:*:*:*:*
cpe:2.3:a:mono_project:mono:1.9:*:*:*:*:*:*:*

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