CVE-2005-4260: Francisco Burzi PHP-Nuke

Medium severity, CVSS 4.3. EPSS: 2.1% chance of exploitation in the next 30 days.

Interpretation conflict in includes/mainfile.php in PHP-Nuke 7.9 and later allows remote attackers to perform cross-site scripting (XSS) attacks by replacing the ">" in the tag with a "<", which bypasses the regular expressions that sanitize the data, but is automatically corrected by many web browsers. NOTE: it could be argued that this vulnerability is due to a design limitation of many web browsers; if so, then this should not be treated as a vulnerability in PHP-Nuke.

Affected products

• Francisco Burzi PHP-Nuke: version 7.0 only; version 7.1 only; version 7.2 only; version 7.3 only; version 7.6 only; version 7.7 only; …

Published 2005-12-15. Last modified 2026-06-16.