CVE-2006-4256: Horde Application Framework

Medium severity, CVSS 4.3. EPSS: 1.8% chance of exploitation in the next 30 days.

index.php in Horde Application Framework before 3.1.2 allows remote attackers to include web pages from other sites, which could be useful for phishing attacks, via a URL in the url parameter, aka "cross-site referencing." NOTE: some sources have referred to this issue as XSS, but it is different than classic XSS.

Affected products

• Horde Application Framework: version 3.0 only; version 3.0.1 only; version 3.0.2 only; version 3.0.3 only; version 3.0.4 only; version 3.0.4_rc1 only; …

Published 2006-08-21. Last modified 2026-06-16.