SQL Injection Vulnerability in FreeScout Help Desk Application
CVE-2026-62856

7.7HIGH

Key Information:

Vendor

Freescout-help-desk

Status
Freescout
Vendor
CVE Published:
6 November 2026

What is CVE-2026-62856?

A vulnerability in FreeScout, a self-hosted help desk and shared mailbox application, allows unauthorized access to notification events across users. The polycast/receive endpoint is vulnerable as it does not properly escape SQL LIKE wildcards in channel names. An attacker with a valid CSRF token can exploit this weakness to craft a wildcard channel name, enabling the retrieval of sensitive notification payloads containing users' conversation messages, identifiers, URLs, and HTML content. This issue was addressed in version 1.8.226.

Affected Version(s)

freescout < 1.8.226

References

https://github.com/freescout-help-desk/freescout/security...
x_refsource_CONFIRM
https://github.com/freescout-help-desk/freescout/commit/1...
x_refsource_MISC
https://github.com/freescout-help-desk/freescout/commit/6...
x_refsource_MISC

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.