What’s Vulnerable › Vulnerabilities

CVE-2026-40570: FreeScout's Missing Authorization in load_customer_info Allows Any Authenticated User to Access Full Customer PII

• Severity: medium (CVSS 5.7 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-21 · updated 2026-06-17
• Weakness: CWE-639

Description

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.

Affected products

• freescout-help-desk freescout: before 1.8.213

References

• https://github.com/freescout-help-desk/freescout/commit/f35b4249c72d9bdac6ab1ea4e288f5894be34057
• https://github.com/freescout-help-desk/freescout/releases/tag/1.8.213
• https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w77q-wjfp-c822
• https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w77q-wjfp-c822

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