CVE-2026-91921

Cross-Site Scripting (XSS) vulnerability due to inadequate input sanitisation in the client-side rendering engine of the 1millionbot AI Chat Platform. An unauthenticated remote user could cause external hyperlinks to be rendered in the web interface by sending messages containing Markdown syntax and certain unsanitised content blocks. The impact is limited to the user’s own interactive session; no compromise of internal infrastructure, access to third-party data or impact on administrative panels has been identified.

CVSS

No CVSS.

References

Link	Resource
https://www.incibe.es/en/incibe-cert/notices/aviso/cross-site-scripting-xss-1millionbots-ai-chatbot-platform

Configurations

No configuration.

History

21 Sep 2026, 10:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-21 10:17

Updated : 2026-09-22 19:41

NVD link : CVE-2026-91921

Mitre link : CVE-2026-91921

CVE.ORG link : CVE-2026-91921

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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