CVE-2026-4263
Deferred Deferred - Pending Action
Authorization Bypass in HiJiffy Chatbot Exposes Private Messages

Publication date: 2026-03-26

Last updated on: 2026-05-19

Assigner: Spanish National Cybersecurity Institute, S.A. (INCIBE)

Description
Vulnerability of incorrect authorization in HiJiffy Chatbot allows an attacker to download private messages from other users via the parameter  'visitor' in '/api/v1/webchat/message'.
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Meta Information
Published
2026-03-26
Last Modified
2026-05-19
Generated
2026-06-16
AI Q&A
2026-03-26
EPSS Evaluated
2026-06-14
NVD
CVE-2026-4263
EUVD
EUVD-2026-16150
Affected Vendors & Products
Currently, no data is known.
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
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Executive Summary

This vulnerability is an incorrect authorization issue in the HiJiffy Chatbot. It allows an attacker to download private messages from other users by exploiting the 'visitor' parameter in the '/api/v1/webchat/message' endpoint.

Impact Analysis

The vulnerability can lead to unauthorized access to private messages of other users, potentially exposing sensitive or confidential information. This can result in privacy breaches and loss of trust in the affected system.

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