Which versions of Hijiffy Chatbot are affected by CVE-2026-4262?

Organizations using Vulnerability of incorrect authorization in HiJiffy Chatbot should be aware of notable risk from CVE-2026-4262, a incorrect authorization vulnerability rated CVSS 6.9.

How to fix or mitigate CVE-2026-4262?

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

Hijiffy Chatbot CVE-2026-4262

Q: What is the CVSS score of CVE-2026-4262?

CVE-2026-4262 has a CVSS 4.0 base score of 6.9 (Medium). 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. EPSS exploitation probability: 0.0%.

EUVD-2026-16148 MEDIUM

Incorrect Authorization (CWE-863)

2026-03-26 INCIBE

Authentication Bypass Hijiffy Chatbot

6.9

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

6.9 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Lifecycle Timeline

EUVD ID Assigned

Mar 26, 2026 - 09:30 euvd

EUVD-2026-16148

Analysis Generated

Mar 26, 2026 - 09:30 vuln.today

CVE Published

Mar 26, 2026 - 09:06 nvd

MEDIUM 6.9

DescriptionCVE.org

Vulnerability of incorrect authorization in HiJiffy Chatbot allows an attacker to download private messages from other users via the parameter 'ID' in '/api/v1/download/<ID>/'.

AnalysisAI

An incorrect authorization vulnerability in HiJiffy Chatbot allows unauthenticated attackers to download private messages from arbitrary users by manipulating the 'ID' parameter in the '/api/v1/download/<ID>/' endpoint. This is a classic authorization bypass enabling unauthorized access to sensitive conversation data. No public exploit code or active exploitation has been identified at the time of analysis, though the vulnerability was reported by INCIBE and affects all versions of HiJiffy Chatbot. The exposure is direct and requires only network access to the affected API endpoint.

Technical ContextAI

The vulnerability resides in the HiJiffy Chatbot application (CPE: cpe:2.3:a:hijiffy:hijiffy_chatbot:*:*:*:*:*:*:*:*), which is a web-based conversational AI platform. The root cause is classified as CWE-863 (Incorrect Authorization), indicating the application fails to enforce proper access controls when users request to download message archives. The '/api/v1/download/<ID>/' API endpoint accepts a user-supplied ID parameter without sufficient validation or authorization checks to confirm the requesting user owns or has permission to access the specified conversation data. This is a typical broken access control flaw where the API trusts client-supplied identifiers to retrieve sensitive resources without verifying the requestor's relationship to those resources.

RemediationAI

Contact HiJiffy immediately to obtain a vendor-released patch or security update addressing the authorization bypass. Implement the fix in your deployment as soon as it becomes available. Pending patch availability, enforce immediate mitigation controls: restrict network access to the '/api/v1/download/' endpoint to only authenticated and authorized users via Web Application Firewall (WAF) rules; implement strict input validation and rate limiting on the ID parameter to prevent enumeration; enable detailed logging and alerting on all download API requests to detect exploitation attempts; and consider temporarily disabling the download functionality if it is not critical to operations. Consult the INCIBE advisory at https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-hijiffy-chatbot for additional guidance and patch release information.