CVE-2026-4263

| EUVD-2026-16150 MEDIUM
2026-03-26 INCIBE
6.9
CVSS 4.0
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CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
Analysis Generated
Mar 26, 2026 - 09:30 vuln.today
EUVD ID Assigned
Mar 26, 2026 - 09:30 euvd
EUVD-2026-16150
CVE Published
Mar 26, 2026 - 09:12 nvd
MEDIUM 6.9

Tags

Authentication Bypass

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'.

Analysis

HiJiffy Chatbot contains an authorization bypass vulnerability in the /api/v1/webchat/message endpoint that allows unauthenticated attackers to download private messages from arbitrary users by manipulating the 'visitor' parameter. The vulnerability affects all versions of HiJiffy Chatbot (as indicated by the wildcard CPE) and has been reported by INCIBE. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

35
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +34
POC: 0

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CVE-2026-4263 vulnerability details – vuln.today
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