How severe is CVE-2006-4758?

CVE-2006-4758 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2006-4758 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4758?

CVE-2006-4758 affects Phpbb Group Phpbb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-4758?

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

When was CVE-2006-4758 published?

CVE-2006-4758 was published on 2006-09-13 and last updated on 2026-06-16.

CVE-2006-4758

CVE-2006-4758 is a medium-severity vulnerability in Phpbb Group Phpbb with a CVSS 2.0 base score of 4.6. 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 4.6)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Phpbb Group Phpbb
Published: 2006-09-13
Last modified: 2026-06-16

Description

phpBB 2.0.21 does not properly handle pathnames ending in %00, which allows remote authenticated administrative users to upload arbitrary files, as demonstrated by a query to admin/admin_board.php with an avatar_path parameter ending in .php%00.

Frequently asked questions

What is CVE-2006-4758?: phpBB 2.0.21 does not properly handle pathnames ending in %00, which allows remote authenticated administrative users to upload arbitrary files, as demonstrated by a query to admin/admin_board.php with an avatar_path parameter ending in .php%00.
How severe is CVE-2006-4758?: CVE-2006-4758 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2006-4758 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4758?: CVE-2006-4758 affects Phpbb Group Phpbb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-4758?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-4758 published?: CVE-2006-4758 was published on 2006-09-13 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:phpbb_group:phpbb:2.0.21:*:*:*:*:*:*:*

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