What the vulnerability does
01Description
Missing Authorization vulnerability in cliengo Cliengo – Chatbot cliengo allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Cliengo – Chatbot: from n/a through <= 3.0.4.
Explanation of Vulnerability in Simple Terms
02Summary
Cliengo Chatbot versions up to 3.0.4 lack proper authorization checks, allowing authenticated users to read sensitive data they should not access. An attacker with a low-privilege account can view confidential information without performing additional actions. The vulnerability does not allow data modification or system unavailability. Update to a version newer than 3.0.4.
What an attacker can do
03Attacker Capabilities
Read sensitive data belonging to other users or the system without authorization.
Potential impact on your site
04Site Impact
User data and confidential information may be exposed to unauthorized account holders.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account on the system.
Key dates
06Disclosure timeline
February 20, 2026
CVE published
April 28, 2026
Record updated