CVE-2026-40570

MEDIUM5.7

FreeScout's Missing Authorization in load_customer_info Allows Any Authenticated User to Access Full Customer PII

Published Apr 21, 2026

Modified Yesterday

Details

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, the load_customer_info action in POST /conversation/ajax returns complete customer profile data to any authenticated user without verifying mailbox access. An attacker only needs a valid email address to retrieve all customer PII. Version 1.8.213 fixes the issue.

References

WEB

https://github.com/freescout-help-desk/freescout/commit/f35b4249c72d9bdac6ab1ea4e288f5894be34057

WEB

https://github.com/freescout-help-desk/freescout/releases/tag/1.8.213

DETECTION

https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w77q-wjfp-c822

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-40570

CVSS Analysis

CVSS v4.0

5.7