CVE-2026-4400 (GCVE-0-2026-4400)

Vulnerability from cvelistv5 – Published: 2026-03-31 10:12 – Updated: 2026-03-31 13:30
VLAI?
Title
Multiple vulnerabilities in 1millionbot Millie chatbot
Summary
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.
Severity ?
7 (High)
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
CWE
  • CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
Impacted products
Vendor Product Version
1millionbot Millie chat Affected: 3.6.0 (custom)
Create a notification for this product.
Credits
David Utón Amaya (m3n0sd0n4ld)
Show details on NVD website
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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