CVE-2026-113600
Received Received - Intake

Authenticated Comment Modification in Fat Free CRM

Publication date: 2026-10-20

Last updated on: 2026-10-20

Assigner: VulnCheck

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-20
Last Modified
2026-10-20
Generated
2026-10-20
AI Q&A
2026-10-20
EPSS Evaluated
N/A
NVD
CVE-2026-113600
EUVD
EUVD-2026-105166

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
fatfreecrm fat_free_crm 0

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

Fat Free CRM before version 0.26.0 has an insecure direct object reference vulnerability. This allows authenticated users to modify or delete comments made by other users without proper authorization checks. The CommentsController#update and #destroy functions use Comment.find without scoping, enabling attackers to send PUT or DELETE requests to /comments/:id with sequential IDs to edit or delete comments on contacts, accounts, leads, and opportunities owned by others.

Detection Guidance

Check for unauthorized modifications or deletions of comments in Fat Free CRM by monitoring PUT or DELETE requests to /comments/:id with sequential IDs. Review application logs for suspicious activity targeting contacts, accounts, leads, or opportunities.

Impact Analysis

This vulnerability allows attackers with authenticated access to alter or remove comments on sensitive CRM data such as contacts, accounts, leads, and opportunities. This could lead to data integrity issues, unauthorized modifications, or loss of important information, potentially disrupting business operations or causing reputational damage.

Compliance Impact

This vulnerability could impact compliance with GDPR and HIPAA by allowing unauthorized modifications or deletions of user comments containing personal or sensitive data. GDPR requires data integrity and protection, while HIPAA mandates safeguarding protected health information. Unauthorized changes could violate these regulations, leading to legal penalties or loss of compliance certifications.

Mitigation Strategies

Upgrade Fat Free CRM to version 0.26.0 or later to address the insecure direct object reference vulnerability. Ensure proper authorization checks are implemented in CommentsController#update and #destroy actions.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-113600. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart