XSS in Chatgptnextweb Nextchat
CVE-2023-49785
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.832 (99.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Chatgptnextweb Nextchat — versions 0
- Nextchat
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (Exploit)
- security-advisories@github.com (Product)
- af854a3a-2127-422b-91ae-364da2661108 (Exploit, Issue Tracking)
- af854a3a-2127-422b-91ae-364da2661108 (Exploit, Issue Tracking, Patch)
- af854a3a-2127-422b-91ae-364da2661108 (Exploit)
Frequently asked questions
- What is CVE-2023-49785?
- CVE-2023-49785 is a critical-severity vulnerability in Chatgptnextweb Nextchat, classified under Cross-site Scripting. CVSS score: 9.1/10. Published 2024-03-12.
- How severe is CVE-2023-49785?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2023-49785 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.