PT-2026-33910 · Freescout · Freescout

Published 2026-04-21 · Updated 2026-04-21 · CVE-2026-40496

Positive Technologies (AI Summary)

CVSS v4.0

9.3

Critical

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions FreeScout versions prior to 1.8.213

Description Attachment download tokens are generated using a weak and predictable formula: md5(APP KEY + attachment id + size). Because attachment id is sequential and size can be brute-forced within a small range, an unauthenticated attacker can forge valid tokens to download private attachments without credentials.

Recommendations Update to version 1.8.213.

Fix

Use of Insufficiently Random Values

Weakness Enumeration

CWE-330

CWE-340

Related Identifiers

CVE-2026-40496

Affected Products

Freescout

References · 5

• https://github.com/freescout-help-desk/freescout/commit/dbdf8f2260b43a21818255c70f0b61b9de9cd555 · Patch
• https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-2783-wxmm-wmwr · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40496 · Security Note
• https://github.com/freescout-help-desk/freescout/releases/tag/1.8.213 · Note
• https://twitter.com/CVEnew/status/2046571857617518744 · Twitter Post