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CVE-2026-41160

EspoCRM: Broken Access Control / IDOR in Note Pinning API allows unauthorized modification of notes PUBLISHED

Description (CNA)

EspoCRM is an open source customer relationship management application. Prior to 9.3.5, a business logic flaw (Broken Access Control) in EspoCRM 9.3.3 allows low-privileged users to pin arbitrary notes without having the required edit permissions for the parent object. Due to a "write first, authorize later" execution flaw in the backend API, even though the server correctly returns a 403 Forbidden error, the targeted note's pinned status is already persistently modified in the database. The root cause lies in the server-side processing of the POST /api/v1/Note/{id}/pin endpoint. In application/Espo/Tools/Stream/Api/PostNotePin.php, the process() method first calls getNote($id) before calling checkParent($note). This vulnerability is fixed in 9.3.5.

Affected (CNA)

Vendor / productVersions
espocrm / espocrmaffected < 9.3.5

CWE

CWE-284, CWE-639, CWE-862

References

ADP enrichment

CISA-ADP

No English description supplied.