CVE-2026-4400 — Multiple vulnerabilities in 1millionbot Millie chatbot
Insecure Direct Object Reference (IDOR) vulnerability in 1millionbot Millie chat that allows private conversations of other users being viewed by simply changing the conversatio…
Published: 2026-03-31 · CVSS: 7.0 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7