Medium

chuanhuchatgpt

XSS Vulnerability via Insecure Model Output Handling

A Cross-Site Scripting (XSS) vulnerability exists in the latest version (20240121) of gaizhenbiao/chuanhuchatgpt due to inadequate sanitization/validation of model output data. This allows for the execution of malicious JavaScript code within the browser context of users. The issue remains unpatched.

Available publicly on Apr 19 2024

6.8

Threat Overview

The vulnerability arises from the application's failure to properly sanitize or validate the output generated by the model before it is rendered in the user's browser. This oversight allows attackers to inject malicious JavaScript code into the model's output, which is then executed in the context of the victim's browser session. Such vulnerabilities are particularly concerning because they can lead to a wide range of attacks, including session hijacking, personal data theft, and the spread of malware.

Attack Scenario

An attacker can exploit this vulnerability by uploading a file containing a payload that injects malicious JavaScript code. For example, a seemingly benign text file uploaded by the attacker can contain a script tag or an HTML element with a JavaScript event handler that executes malicious code. When another user accesses this file through the application, the malicious code is executed in their browser, leading to potential compromise of their session or other malicious activities.

Who is affected

Users of the gaizhenbiao/chuanhuchatgpt application version 20240121 are affected by this vulnerability. Specifically, users who interact with content that has been manipulated by an attacker are at risk of having malicious JavaScript executed within their browser context.

Technical Report
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