How severe is CVE-2012-3828?

CVE-2012-3828 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-3828 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3828?

CVE-2012-3828 affects Joomla Joomla!. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-3828?

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

When was CVE-2012-3828 published?

CVE-2012-3828 was published on 2012-07-03 and last updated on 2026-06-16.

CVE-2012-3828

CVE-2012-3828 is a medium-severity vulnerability in Joomla Joomla! 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% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Joomla Joomla!
Published: 2012-07-03
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in Joomla! 2.5.3 allows remote attackers to inject arbitrary web script or HTML via the Host HTTP Header.

Frequently asked questions

What is CVE-2012-3828?: Cross-site scripting (XSS) vulnerability in Joomla! 2.5.3 allows remote attackers to inject arbitrary web script or HTML via the Host HTTP Header.
How severe is CVE-2012-3828?: CVE-2012-3828 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-3828 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3828?: CVE-2012-3828 affects Joomla Joomla!. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-3828?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-3828 published?: CVE-2012-3828 was published on 2012-07-03 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:joomla:joomla\!:2.5.3:*:*:*:*:*:*:*

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