Medium severity5.4NVD Advisory· Published Oct 20, 2026
CVE-2026-113600
CVE-2026-113600
Description
Fat Free CRM before 0.26.0 contains an insecure direct object reference vulnerability that allows authenticated users to modify or delete other users' comments because CommentsController#update and #destroy use an unscoped Comment.find without authorization checks. Attackers can send PUT or DELETE requests to /comments/:id with enumerable sequential IDs to edit or delete comments on contacts, accounts, leads, and opportunities owned by others.
Affected products
1- Range: <0.26.0
Patches
Vulnerability mechanics
References
5- github.com/fatfreecrm/fat_free_crm/blob/v0.25.0/app/controllers/comments_controller.rbnvd
- github.com/fatfreecrm/fat_free_crm/commit/3c3199328dd10414b1f039ab8e4a82fe0f3baf87nvd
- github.com/fatfreecrm/fat_free_crm/issues/1650nvd
- github.com/fatfreecrm/fat_free_crm/releases/tag/v0.26.0nvd
- www.vulncheck.com/advisories/fat-free-crm-before-0.26.0-idor-via-commentscontroller-update-and-destroynvd
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