CVE-2026-4400 — Multiple vulnerabilities in 1millionbot Millie chatbot

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
1millionbot / Millie chat	affected 3.6.0

CWE

CWE-639

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-1millionbot-millie-chatbot

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.