CVE-2006-5525: Phpnuke PHP-Nuke

Medium severity, CVSS 5.1. EPSS: 1.1% chance of exploitation in the next 30 days.

Incomplete blacklist vulnerability in mainfile.php in PHP-Nuke 7.9 and earlier allows remote attackers to conduct SQL injection attacks via (1) "/**/UNION " or (2) " UNION/**/" sequences, which are not rejected by the protection mechanism, as demonstrated by a SQL injection via the eid parameter in a search action in the Encyclopedia module in modules.php.

Affected products

• Phpnuke PHP-Nuke: up to and including 7.9; version 7.0 only; version 7.1 only; version 7.2 only; version 7.3 only; version 7.4 only; …

Published 2006-10-26. Last modified 2026-06-16.