Vulnerability · Published Apr 21, 2026 · Assigned by GitHub_M

CVE-2026-41194FreeScout's Mailbox OAuth disconnect uses a state-changing GET and is CSRFable

Medium 5.4

In plain English

A medium-severity cross-site request forgery in freescout from freescout-help-desk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.1%top 98.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, the mailbox OAuth disconnect action is implemented as `GET /mailbox/oauth-disconnect/{id}/{in_out}/{provider}`. It removes stored OAuth metadata from the mailbox and then redirects. Because it is a GET route, no CSRF token is required and the action can be triggered cross-site against a logged-in mailbox admin. Version 1.8.215 fixes the vulnerability.

Affected products (as reported)

Vendor	Product	Versions
freescout-help-desk	freescout	< 1.8.215

Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

References

https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6rvw-fhqx-cfv5 x_refsource_CONFIRM
https://github.com/freescout-help-desk/freescout/commit/eb397efae2086524ba0ee91abb916de8db7a4ac1 x_refsource_MISC
https://github.com/freescout-help-desk/freescout/releases/tag/1.8.215 x_refsource_MISC