๐Ÿ›ก๏ธ CVE-2026-40496
๐Ÿ”ด CVSS 9.1 โ€” Critical โš ๏ธ Exploit Public CWE-330 NVD
9.1
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity CRITICAL
CVSS Score 9.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE CWE-330
Public Exploit โš ๏ธ Yes
Source NVD
Published 2026-04-21
Updated 2026-06-02
Modified 2026-04-23

Affected Packages

Software From version Fixed in
freescout โ€” 1.8.213

Similar Threats

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