CVE-2026-62856
HIGH
MEDIUM
Priority: 0.02
BB Relevance:
65/100
Published: 2026-11-06
Modified: 2026-11-12
First seen: 2026-11-06
Status: active
Attack Surface
Network
Low Complexity
No Interaction
Conf. Impact
Scope Change
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
S:
Changed
C:
High
I:
None
A:
None
Description
FreeScout is a self-hosted help desk and shared mailbox application. Prior to version 1.8.226, the polycast/receive endpoint fails to escape SQL LIKE wildcards in supplied channel names, while channel authorization applies only to names with specific prefixes. An unauthenticated attacker with a guest session and valid CSRF token can submit a wildcard channel name to retrieve matching notification events intended for other users. Notification payload generation lacks a corresponding access check, exposing conversation message content, identifiers, URLs, and notification HTML across users and mailboxes. This issue is fixed in version 1.8.226.
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| freescout-help-desk | freescout | < 1.8.226 |
| freescout-help-desk | freescout | < 1.8.226 |