Vulnerability · Published Apr 21, 2026 · Assigned by GitHub_M
CVE-2026-41192FreeScout's client-controlled attachment IDs allow deletion of existing conversation attachments
High 7.1
In plain English
A high-severity missing authorization in freescout from freescout-help-desk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).
Official description
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, the reply and draft flows trust client-supplied encrypted attachment IDs. Any IDs present in `attachments_all[]` but omitted from retained lists are decrypted and passed directly to `Attachment::deleteByIds()`. Because `load_attachments` returns encrypted IDs for attachments on a visible conversation, a mailbox peer can replay those IDs through `save_draft` and delete the original attachment row and file. Version 1.8.215 fixes the vulnerability.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| freescout-help-desk | freescout | < 1.8.215 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
References
- https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-cv36-2j23-x6g3 x_refsource_CONFIRM
- https://github.com/freescout-help-desk/freescout/commit/5f182818e2391f8e711fec6ae6648ac0b367bef5 x_refsource_MISC
- https://github.com/freescout-help-desk/freescout/releases/tag/1.8.215 x_refsource_MISC