CVE-2026-41194

MEDIUM 5.4

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

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-352
Vendor	freescout-help-desk
Product	freescout
Published	Apr 21, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Affected Versions

freescout-help-desk / freescout

< 1.8.215

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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