CVE-2005-4449: verify.php in FlatNuke 2.5.6 allows remote authenticated administrators to modify arbitrary PHP files by se...

Security readout for executives and security teams

FlatNuke 2.5.6 reportedly lets a logged-in administrator alter arbitrary PHP files through verify.php. This can become server-side code execution if an attacker has admin access. The record also notes this may not be a true privilege escalation where administrators are already allowed to edit arbitrary content. Exposure is likely limited to legacy FlatNuke 2.5.6 deployments with reachable administrator functionality. The supplied sources do not identify other affected products or versions. Internet exposure depends on whether the FlatNuke admin interface is externally accessible. Prioritize if FlatNuke 2.5.6 is internet-facing or used on a business-relevant site. For most organizations, this is a legacy technology risk best handled through removal, upgrade, or strict administrative isolation. Mitigation focus: Inventory for FlatNuke 2.5.6 and any reachable admin panels.; Restrict administrator access to trusted networks and accounts.; Review vendor changelog or advisories for upgrade guidance..

Prepared

Jun 29, 2026, 15:49 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.