Vulnerability · Published Apr 21, 2026 · Assigned by GitHub_M

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

Medium 5.7

In plain English

A medium-severity authorization bypass via user-controlled key in freescout from freescout-help-desk. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).

Severity (CVSS 4.0)5.7Medium

Exploit odds (30 days)0.2%top 83.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
freescout-help-desk	freescout	< 1.8.213

Weakness: CWE-639, CWE-862 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

References

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