freescout-help-desk Freescout up to 1.8.225 Realtime Conversation Thread RealtimeConvNewThread privileges management

Summaryinfo

A vulnerability identified as problematic has been detected in freescout-help-desk Freescout up to 1.8.225. This affects the function RealtimeConvNewThread of the component Realtime Conversation Thread. This manipulation causes privileges management. The identification of this vulnerability is CVE-2026-62852. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in freescout-help-desk Freescout up to 1.8.225 and classified as problematic. Affected by this vulnerability is the function RealtimeConvNewThread of the component Realtime Conversation Thread. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality. The summary by CVE is:

FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.226, RealtimeConvNewThread checks only general mailbox access and does not apply the conversation-level restriction for users configured to see only assigned conversations. A restricted authenticated user can subscribe to predictable conv.<conversation_id> Polycast channels for other conversations in the same mailbox. New event payloads can expose complete replies, internal notes, recipient addresses, conversation state, assignee data, attachment names, and attachment URLs containing valid download tokens. This issue is fixed in version 1.8.226.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-62852 since 07/14/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 1.8.226 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• freescout-help-desk

Name

• Freescout

Version

• 1.8.225

Website

• Product: https://github.com/freescout-help-desk/freescout/

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion