CVE-2006-4758: Phpbb Group Phpbb

Medium severity, CVSS 4.6. EPSS: 1.7% chance of exploitation in the next 30 days.

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.

Affected products

Published 2006-09-13. Last modified 2026-06-16.