Is CVE-2012-3829 being actively exploited?

CVE-2012-3829 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-3829?

CVE-2012-3829 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2012-3829

MEDIUM · CVSS 5.0EPSS 1.3%EU EUVD

Joomla! 2.5.3 allows remote attackers to obtain the installation path via the Host HTTP Header.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness (CWE): CWE-200
EPSS score: 1.3% (70th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-3776)
Published: July 3, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-3776 in the EU Vulnerability Database. Last updated in EUVD on September 17, 2024.

View on the EU Vulnerability Database

Affected products

joomla / joomla!

References

http://packetstormsecurity.org/files/112249/Joomla-2.5.3-Host-Header-Cross-Site-Scripting.html(Exploit)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain