Is this vulnerability remotely exploitable?

Yes. Any remote user who can send messages to a vulnerable ChatterMate chatbot instance can attempt to exploit the issue. If the chatbot is accessible over the internet, attackers do not need network proximity or local access.

What level of access does an attacker need to exploit this?

Typically, only the ability to submit chat input is required. If the chatbot permits messages from unauthenticated users, no login is necessary. If the chatbot is restricted to authenticated users, any authenticated account that can send messages may be able to exploit the flaw.

What is the safest general fix pattern for developers?

The most robust fix is to ensure that all chatbot messages are treated as untrusted data and rendered safely: escape HTML by default, disallow or strictly sanitize HTML tags, block javascript: and other scriptable URLs, and avoid DOM sinks that interpret HTML. Adopting proven sanitization libraries and enforcing consistent encoding at template boundaries is key.

Severity:

CRITICAL RISK

(9.3)

Cross-Site Scripting (CWE-79) in ChatterMate Chat Input Handling

CVE-2026-24399

Published:

Jan 23, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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Account Takeover / Loss of Account Control

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CWE-77;CWE-78

HIGH RISK

HIGH

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OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

Cross-Site Scripting (XSS)

CWE:

CWE-79

Impact:

Client-Side Code Execution and Data Exfiltration

Severity:

CRITICAL RISK

(9.3)

CVSS Version:

3.1

Vulnerability Type

Category:

Cross-Site Scripting (XSS)

CWE:

CWE-79

Impact:

Client-Side Code Execution and Data Exfiltration

Severity:

CRITICAL RISK

(9.3)

CVSS Version:

3.1

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Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Cross-Site Scripting (CWE-79) in ChatterMate Chat Input Handling

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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