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CVE

CVE-2026-24399

ChatterMate has Stored Cross-Site Scripting (XSS) via Chatbot Input Execution
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CVE

CVE-2026-24399

ChatterMate has Stored Cross-Site Scripting (XSS) via Chatbot Input Execution

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24399.json, https://github.com/chattermate/chattermate.chat/commit/ff3398031abb97ae28546eaf993fed3619eaffdd, https://github.com/chattermate/chattermate.chat/releases/tag/v1.0.9, https://github.com/chattermate/chattermate.chat/security/advisories/GHSA-72p3-w95w-q3j4, https://nvd.nist.gov/vuln/detail/CVE-2026-24399

Severity

9.3

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
9.3
EPSS Probability
0.00011%
EPSS Percentile
0.01313%
Introduced Version
0
Fix Available
a771d55a6e59eb9d4d5915503950b99012cdfad3

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