CVE-2005-0269: The file extension check in GNUBoard 3.40 and earlier only verifies extensions that contain all lowercase l...

Security readout for executives and security teams

GNUBoard 3.40 and earlier had a weak file-extension check. It only checked all-lowercase extensions, so a remote user could bypass filtering by using uppercase characters and upload files the site meant to block. Exposure is likely limited to legacy GNUBoard deployments at version 3.40 or earlier, especially internet-facing boards with file upload enabled. The bundle does not identify downstream packages or hosted services. Prioritize if any internet-facing legacy GNUBoard instance remains active. Arbitrary upload flaws can create serious compromise paths, but urgency depends on whether the affected software is present. Mitigation focus: Inventory GNUBoard deployments and identify versions 3.40 or earlier.; Check GNUBoard or maintainer guidance for fixed versions or replacement options.; Disable or restrict file uploads until remediation is confirmed..

Prepared

Jun 30, 2026, 01:08 UTC (UTC+00:00)

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