Report: Essential Guide: CVE-2026-40496 - FreeScout has Predictable Attachment Token that Allows Unauthenticated Private F...

Report: Essential Guide: CVE-2026-40496 - FreeScout has Predictable Attachment Token that Allows Unauthenticated Private F...

CVE ID :CVE-2026-40496 Published : April 21, 2026, 1:38 a.m. | 37 minutes ago Description :FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, attachment download tokens are generated using a weak and predictable formula: `md5(APP_KEY + attachment_id + size)`. Since attachment_id is sequential and size can be brute-forced in a small range, an unauthenticated attacker can forge valid tokens and download any private attachment without credentials. Version 1.8.213 fixes the issue. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Published
April 21, 2026