Vulnerabilities in pkg:npm/nextchat

PACKAGE
Advisory Identifier: GHSA-qf3q-9f3h-cjp9
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Advisory Summary

CVE-2023-49785 is a CRITICAL (CVSS 9.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Nextchat libraries in the npm ecosystem. The issue involves nextchat has full-read ssrf and xss vulnerability in /api/cors endpoint. Remediation is available in the latest vendor maintenance releases.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/nextchat

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/nextchat. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-qf3q-9f3h-cjp9 CVE-2023-49785 CRITICAL NextChat has full-read SSRF and XSS vulnerability in /api/cors endpoint

CVE-2023-49785 at a Glance

CVE Identifier CVE-2023-49785
GHSA Identifier GHSA-qf3q-9f3h-cjp9
Severity CRITICAL
CVSS v3.1 Base Score 9.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Nextchat
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 9.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2023-49785

To remediate this vulnerability, upgrade all affected Nextchat dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

nextchat fixed: Latest secure release 
npm install nextchat@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls nextchat

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2023-49785, inspect your project dependencies using npm:

npm ls nextchat

Analyze the terminal output to locate any version of Nextchat in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls nextchat command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Nextchat, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

NextChat, also known as ChatGPT-Next-Web, is a cross-platform chat user interface for use with ChatGPT. Versions 2.11.2 and prior are vulnerable to server-side request forgery and cross-site scripting. This vulnerability enables read access to internal HTTP endpoints but also write access using HTTP POST, PUT, and other methods. Attackers can also use this vulnerability to mask their source IP by forwarding malicious traffic intended for other Internet targets through these open proxies. As of time of publication, no patch is available, but other mitigation strategies are available. Users may avoid exposing the application to the public internet or, if exposing the application to the internet, ensure it is an isolated network with no access to any other internal resources.

CVE-2023-49785 Affected Nextchat Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
nextchat
npm/nextchat
npm
≤ 2.11.2

References

NVD — CVE-2023-49785 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-49785
Nextchat Source Repository REPOSITORY
https://github.com/ChatGPTNextWeb/ChatGPT-Next-Web
www.horizon3.ai/attack-research/att... WEB
https://www.horizon3.ai/attack-research/attack-blogs/nextchat-an-ai-chatbot-that-lets-you-talk-to-anyone-you-want-to

Frequently Asked Questions

What is CVE-2023-49785?
CVE-2023-49785 is a security vulnerability in Nextchat involving NextChat has full-read SSRF and XSS vulnerability in /api/cors endpoint under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Nextchat versions are affected?
Affected versions include releases prior to current release patches across affected packages: nextchat.
What version fixes CVE-2023-49785?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is nextchat affected?
Yes, nextchat is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2023-49785?
CVE-2023-49785 has a CVSS v3.1 base score of 9.1 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2023-49785?
CVE-2023-49785 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check npm dependencies for CVE-2023-49785?
Run the dependency tree command: 'npm ls nextchat'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-qf3q-9f3h-cjp9",
  "modified" : "2024-08-05T21:29:23Z",
  "published" : "2024-08-05T21:29:23Z",
  "aliases" : [ "CVE-2023-49785" ],
  "summary" : "NextChat has full-read SSRF and XSS vulnerability in /api/cors endpoint",
  "details" : "NextChat, also known as ChatGPT-Next-Web, is a cross-platform chat user interface for use with ChatGPT. Versions 2.11.2 and prior are vulnerable to server-side request forgery and cross-site scripting. This vulnerability enables read access to internal HTTP endpoints but also write access using HTTP POST, PUT, and other methods. Attackers can also use this vulnerability to mask their source IP by forwarding malicious traffic intended for other Internet targets through these open proxies. As of time of publication, no patch is available, but other mitigation strategies are available. Users may avoid exposing the application to the public internet or, if exposing the application to the internet, ensure it is an isolated network with no access to any other internal resources.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "nextchat"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "2.11.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-49785"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ChatGPTNextWeb/ChatGPT-Next-Web"
  }, {
    "type" : "WEB",
    "url" : "https://www.horizon3.ai/attack-research/attack-blogs/nextchat-an-ai-chatbot-that-lets-you-talk-to-anyone-you-want-to"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79", "CWE-918" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-08-05T21:29:23Z",
    "nvd_published_at" : "2024-03-12T00:15:26Z"
  }
}