Description

Insecure Direct Object Reference (IDOR) vulnerability in 1millionbot Millie chat that allows private conversations of other users being viewed by simply changing the conversation ID. The vulnerability is present in the endpoint 'api.1millionbot.com/api/public/conversations/' and, if exploited, could allow a remote attacker to access other users private chatbot conversations, revealing sensitive or confidential data without requiring credentials or impersonating users. In order for the vulnerability to be exploited, the attacker must have the user's conversation ID.

INFO

Published Date :

2026-03-31T10:12:08.031Z

Last Modified :

2026-03-31T13:30:36.779Z

Source :

INCIBE
AFFECTED PRODUCTS

The following products are affected by CVE-2026-4400 vulnerability.

Vendors Products
1millionbot
  • Millie Chat
  • Millie Chatbot
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-4400.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact