How severe is CVE-2006-4420?

CVE-2006-4420 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2006-4420 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4420?

CVE-2006-4420 primarily affects Phaos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-4420?

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

When was CVE-2006-4420 published?

CVE-2006-4420 was published on 2006-08-28 and last updated on 2026-06-16.

CVE-2006-4420

CVE-2006-4420 is a medium-severity vulnerability in Phaos with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Phaos
Published: 2006-08-28
Last modified: 2026-06-16

Description

Directory traversal vulnerability in include_lang.php in Phaos 0.9.2 allows remote attackers to include arbitrary local files via ".." sequences in the lang parameter.

Frequently asked questions

What is CVE-2006-4420?: Directory traversal vulnerability in include_lang.php in Phaos 0.9.2 allows remote attackers to include arbitrary local files via ".." sequences in the lang parameter.
How severe is CVE-2006-4420?: CVE-2006-4420 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2006-4420 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4420?: CVE-2006-4420 primarily affects Phaos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-4420?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-4420 published?: CVE-2006-4420 was published on 2006-08-28 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:phaos:phaos:0.9:*:*:*:*:*:*:*
cpe:2.3:a:phaos:phaos:0.9.1:*:*:*:*:*:*:*
cpe:2.3:a:phaos:phaos:0.9.2:*:*:*:*:*:*:*