CVE-2026-62852
FreeScout: Missing Authorization and Exposure of Sensitive Information to an Unauthorized Actor and Authorization Bypass Through User-Controlled Key
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Received | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- Not scored
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (opens in a new tab)All about CWE-200 and its CVEs
- CWE-639: Authorization Bypass Through User-Controlled Key (opens in a new tab)All about CWE-639 and its CVEs
- CWE-862: Missing Authorization (opens in a new tab)All about CWE-862 and its CVEs
Affected products
freescout-help-desk · freescout
- affected < 1.8.226
References (3)
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w668-wq26-6c94 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/freescout-help-desk/freescout/commit/e47a54a5af6c57181ef99711326f5886e940b776 (opens in a new tab)x_refsource_MISC
- https://github.com/freescout-help-desk/freescout/releases/tag/1.8.226 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-62852)Record last updated .