How severe is CVE-2006-4450?

CVE-2006-4450 has a CVSS 2.0 base score of 5.1, rated medium severity.

Is CVE-2006-4450 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4450?

CVE-2006-4450 affects Phpbb Group Phpbb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-4450?

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

When was CVE-2006-4450 published?

CVE-2006-4450 was published on 2006-08-30 and last updated on 2026-06-16.

CVE-2006-4450

CVE-2006-4450 is a medium-severity vulnerability in Phpbb Group Phpbb with a CVSS 2.0 base score of 5.1. 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 5.1)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Phpbb Group Phpbb
Published: 2006-08-30
Last modified: 2026-06-16

Description

usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to use the server as a web proxy by submitting a URL to the avatarurl parameter, which is then used in an HTTP GET request.

Frequently asked questions

What is CVE-2006-4450?: usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to use the server as a web proxy by submitting a URL to the avatarurl parameter, which is then used in an HTTP GET request.
How severe is CVE-2006-4450?: CVE-2006-4450 has a CVSS 2.0 base score of 5.1, rated medium severity.
Is CVE-2006-4450 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4450?: CVE-2006-4450 affects Phpbb Group Phpbb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-4450?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-4450 published?: CVE-2006-4450 was published on 2006-08-30 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:phpbb_group:phpbb:2.0.20:*:*:*:*:*:*:*

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