Vulnerability Description
The vulnerability involves an Insecure Direct Object Reference (IDOR) in the `DeleteNotificationController::delete()` method at endpoint `GET /notification/delete/{id}`. The flaw allows any authenticated user, regardless of company or permissions, to delete notifications belonging to any other user in the system. The controller retrieves the target record with `Notification::findOrFail($id)` and deletes it without validating `user_id` or `company_id` ownership, unlike the sibling `SetNotificationReadAjaxController`, which correctly scopes lookups by `Auth::id()`. Because notification identifiers are sequential, an attacker can iterate over IDs to systematically delete notifications belonging to any user, denying them visibility of ticket alerts, task assignments, and other system events.
Related Weaknesses (CWE)
References
- https://github.com/Roskus/prospero-flow-crm/commit/eaee2ae018701d116164976cbfa37
- https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3
- https://secur0.com/en/cna/cve-list/cve-2026-59240-idor-in-prospero-flow-crm-allo
FAQ
What is CVE-2026-59240?
CVE-2026-59240 is a documented vulnerability. The vulnerability involves an Insecure Direct Object Reference (IDOR) in the `DeleteNotificationController::delete()` method at endpoint `GET /notification/delete/{id}`. The flaw allows any authentica...
How severe is CVE-2026-59240?
CVSS scoring is not yet available for CVE-2026-59240. Check NVD for updates.
Is there a patch for CVE-2026-59240?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.