Cyber Resilience

CVE-2024-3402

MediumPublic PoC

Published: 06 June 2024

Published
06 June 2024
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0020 41.5th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-3402 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Gaizhenbiao Chuanhuchatgpt. Its CVSS base score is 5.4 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique JavaScript (T1059.007); ranked at the 41.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

This vulnerability is AI-related — categorised as Enterprise AI Assistants; in the LLM/Generative AI Risks risk domain; MITRE ATLAS techniques in scope: LLM Prompt Injection (AML.T0051).

EU & UK References

Vulnerability details

A stored Cross-Site Scripting (XSS) vulnerability existed in version (20240121) of gaizhenbiao/chuanhuchatgpt due to inadequate sanitization and validation of model output data. Despite user-input validation efforts, the application fails to properly sanitize or validate the output from the model, allowing…

more

for the injection and execution of malicious JavaScript code within the context of a user's browser. This vulnerability can lead to the execution of arbitrary JavaScript code in the context of other users' browsers, potentially resulting in the hijacking of victims' browsers.

CWE(s)
CWE-79

AI Security AnalysisAI

AI Category
Enterprise AI Assistants
Risk Domain
LLM/Generative AI Risks
OWASP Top 10 for LLMs 2025
None mapped
Classification Reason
chuanhuchatgpt is an open-source web UI for ChatGPT, functioning as an enterprise-style AI chat assistant platform where the vulnerability arises from unsanitized model output leading to stored XSS.

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1059.007 JavaScript Execution
Adversaries may abuse various implementations of JavaScript for execution.
attack.mitre.org →
T1185 Browser Session Hijacking Collection
Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Stored XSS enables arbitrary JavaScript execution in victims' browsers (T1059.007), facilitating browser session hijacking via cookie theft or similar (T1185), and represents exploitation of a public-facing web application (T1190).

MITRE ATLAS TechniquesAI

MITRE ATLAS techniques

AML.T0051: LLM Prompt Injection

Affected Assets

gaizhenbiao
chuanhuchatgpt
≤ 20240918

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation
addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering
addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References