CVE-2026-41903

MEDIUM 5.4

FreeScout IDOR Vulnerability: PERM_EDIT_USERS allows modifying any user's notification subscriptions (incomplete fix of CVE-2025-48472)

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, a user holding the PERM_EDIT_USERS permission (intended for general user-profile editing) can read and modify the notification subscriptions of any other user, including admins, by sending a single POST request. This is a sibling of CVE-2025-48472's notification authorization bypass — the prior fix did not cover this code path. A non-admin attacker can silently disable an admin's email/browser/mobile notifications, suppressing security alerts and conversation-assignment notices. This issue has been patched in version 1.8.217.

CWE	CWE-863
Vendor	freescout-help-desk
Product	freescout
Published	May 7, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Affected Versions

freescout-help-desk / freescout

< 1.8.217

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-f489-qxv6-gvgg github.com: https://github.com/freescout-help-desk/freescout/releases/tag/1.8.217