CVE-2026-113600CWE-639

CVE-2026-113600

Medium · published October 20, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
19.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
EPSS
0.00278 · 19.3th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-10-20T20:17Z
References (5)
https://github.com/fatfreecrm/fat_free_crm/blob/v0.25.0/app/controllers/comments_controller.rb · [email protected]https://github.com/fatfreecrm/fat_free_crm/commit/3c3199328dd10414b1f039ab8e4a82fe0f3baf87 · [email protected]https://github.com/fatfreecrm/fat_free_crm/issues/1650 · [email protected]https://github.com/fatfreecrm/fat_free_crm/releases/tag/v0.26.0 · [email protected]https://www.vulncheck.com/advisories/fat-free-crm-before-0.26.0-idor-via-commentscontroller-update-and-destroy · [email protected]
EPSS history
Timeline
  • 22 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 20 OCT 15:40Z
    Fat Free CRM before 0.26.0 IDOR via CommentsController update and destroy
    cvelistv5
  • 20 OCT 15:40Z
    Fat Free CRM before 0.26.0 IDOR via CommentsController update and destroy
    cvelistv5