CVE-2023-49785— NextChat vulnerable to Server-Side Request Forgery and Cross-site Scripting
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I. Basic Information for CVE-2023-49785
Vulnerability Information
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Vulnerability Title
NextChat vulnerable to Server-Side Request Forgery and Cross-site Scripting
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
NextChat 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NextChat是一个用于快速部署私人 ChatGPT 网页应用的项目。 NextChat 2.11.2及之前版本存在安全漏洞，该漏洞源于存在服务器请求伪造（SSRF）和跨站脚本(XSS)漏洞。攻击者可利用该漏洞对内部HTTP端点进行读取访问等操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ChatGPTNextWeb | NextChat | 0 ~ 2.11.2 | - |
II. Public POCs for CVE-2023-49785
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Full-Read SSRF/XSS in NextChat, aka ChatGPT-Next-Web | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-49785.yaml | POC Details |
| 2 | None | https://github.com/hyunnna/NextChat_SSRF_CVE-2023-49785 | POC Details |
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IV. Related Vulnerabilities
Same product: NextChat
Same vendor: ChatGPTNextWeb
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ChatGPTNextWeb NextChat actions.ts addMcpServer improper aut - CVE-2026-7643
ChatGPTNextWeb NextChat API Endpoint Next.js cross-domain po - CVE-2026-7178
ChatGPTNextWeb NextChat Artifacts Endpoint route.ts storeUrl - CVE-2026-7177
ChatGPTNextWeb NextChat route.ts proxyHandler server-side re - CVE-2024-38514
NextChat Server-Side Request Forgery (SSRF)
Same weakness: CWE-918
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New API: SSRF Filter Bypass via 0.0.0.0
V. Comments for CVE-2023-49785
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