CVE-2026-39384

FreeScout Customer Merge Cross-Mailbox Authorization Bypass

HIGH
7.6
CVSS Score
Published: April 7, 2026 at 04:05 PM UTC
Updated: June 17, 2026 at 10:42 AM UTC
2 products affected across 2 vendorsFreescoutFreescout

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Severity
HIGH7.6
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.212, FreeScout does not take the limit_user_customer_visibility parameter into account when merging customers. This vulnerability is fixed in 1.8.212.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.8.212
v < 1.8.212
Affected range stops below 1.8.212, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.6HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-639

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