What’s Vulnerable › Vulnerabilities

CVE-2026-4263: Incorrect authorization in HiJiffy Chatbot

• Severity: medium (CVSS 6.9 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-26 · updated 2026-06-17
• Weakness: CWE-863

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'.

Affected products

• HiJiffy Chatbot: all versions

References

• https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-hijiffy-chatbot

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