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.
History

Tue, 31 Mar 2026 10:45:00 +0000

Type Values Removed Values Added
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.
Title Multiple vulnerabilities in 1millionbot Millie chatbot
First Time appeared 1millionbot
1millionbot millie Chat
Weaknesses CWE-639
CPEs cpe:2.3:a:1millionbot:millie_chat:3.6.0:*:*:*:*:*:*:*
Vendors & Products 1millionbot
1millionbot millie Chat
References
Metrics cvssV4_0

{'score': 7, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: INCIBE

Published:

Updated: 2026-03-31T13:30:36.779Z

Reserved: 2026-03-18T17:18:51.920Z

Link: CVE-2026-4400

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-31T11:16:14.470

Modified: 2026-03-31T11:16:14.470

Link: CVE-2026-4400

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.