CVE-2026-24399

CRITICAL

9.3

Description

ChatterMate is a no-code AI chatbot agent framework. In versions 1.0.8 and below, the chatbot accepts and executes malicious HTML/JavaScript payloads when supplied as chat input. Specifically, an <iframe> payload containing a javascript: URI can be processed and executed in the browser context. This allows access to sensitive client-side data such as localStorage tokens and cookies, resulting in client-side injection. This issue has been fixed in version 1.0.9.

CVE Details

CVSS v3.1 Score9.3

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published1/24/2026

Last Modified2/12/2026

Sourcenvd

Honeypot Sightings0

Affected Products

chattermate:chattermate

Weaknesses (CWE)

CWE-79

References

https://github.com/chattermate/chattermate.chat/commit/ff3398031abb97ae28546eaf993fed3619eaffdd(security-advisories@github.com)

https://github.com/chattermate/chattermate.chat/releases/tag/v1.0.9(security-advisories@github.com)

https://github.com/chattermate/chattermate.chat/security/advisories/GHSA-72p3-w95w-q3j4(security-advisories@github.com)

IOC Correlations

No correlations recorded

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