CVE-2023-49785

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2024-08-05. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.1
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 83%
CISA-KEV: Not listedEPSS: 83%CVSS: 9.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
89(Track)
EG Risk 89/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation83% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
99.6%
KEV
Not listed

Published

March 12, 2024

Last Modified

April 10, 2025

Advisory Details (5)

Auto-updated Jul 19, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic

Hacking AI Chatbots for fun and learning - Analyzing an unauthenticated SSRF and reflected XSS in ChatGPT-Next-Web (CVE-2023-49785) - vsociety

https://www.vicarius.io/vsociety/posts/hacking-ai-chatbots-for-fun-and-learning-analyzing-an-unauthenticated-ssrf-and-reflected-xss-in-chatgpt-next-web-cve-2023-49785
generic

NextChat: An AI Chatbot That Lets You Talk to Anyone You Want To | Horizon3.ai

https://www.horizon3.ai/attack-research/attack-blogs/nextchat-an-ai-chatbot-that-lets-you-talk-to-anyone-you-want-to/
github_pr

[Bugfix] Fix CORS SSRF security issue

Fix merged in ChatGPTNextWeb/ChatGPT-Next-Web PR #4285 on 2024-03-13 — awaiting tagged release

https://github.com/ChatGPTNextWeb/ChatGPT-Next-Web/pull/4285
generic

[Bug] NextChat cors SSRF 漏洞（CVE-2023-49785） · Issue #4283 · ChatGPTNextWeb/NextChat · GitHub

https://github.com/ChatGPTNextWeb/ChatGPT-Next-Web/issues/4283
generic

GitHub - ChatGPTNextWeb/NextChat: ✨ Light and Fast AI Assistant. Support: Web | iOS | MacOS | Android | Linux | Windows · GitHub

https://github.com/ChatGPTNextWeb/ChatGPT-Next-Web

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
npmnextchat—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
nextchat———

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 25× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 02:28 UTCEG score recompute
  2. 2026-07-22 23:15 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
  4. 2026-07-21 15:23 UTCEPSS rescore
  5. 2026-07-21 15:23 UTCEPSS rescore
  6. 2026-07-20 17:06 UTCEPSS rescore
  7. 2026-07-19 14:29 UTCEPSS rescore
  8. 2026-07-19 14:29 UTCEPSS rescore
  9. 2026-07-15 16:56 UTCEPSS rescore
  10. 2026-07-15 16:56 UTCEPSS rescore
  11. 2026-07-14 17:10 UTCOSV refresh
  12. 2026-07-13 22:28 UTCEPSS rescore
  13. 2026-07-13 22:28 UTCEPSS rescore
  14. 2026-07-11 08:26 UTCEPSS rescore
  15. 2026-07-08 15:13 UTCEPSS rescore
  16. 2026-07-06 16:26 UTCEPSS rescore
  17. 2026-07-06 16:26 UTCEPSS rescore
  18. 2026-07-05 02:29 UTCEPSS rescore
  19. 2026-07-02 16:59 UTCEPSS rescore
  20. 2026-07-01 15:05 UTCEPSS rescore
  21. 2026-06-26 18:09 UTCOSV refresh
  22. 2026-06-25 13:48 UTCEPSS rescore
  23. 2026-06-25 13:48 UTCEPSS rescore
  24. 2026-06-24 14:04 UTCEPSS rescore
  25. 2026-06-24 14:04 UTCEPSS rescore
Show 22 more
  1. 2026-06-23 21:31 UTCEPSS rescore
  2. 2026-06-23 21:31 UTCEPSS rescore
  3. 2026-06-21 01:58 UTCEPSS rescore
  4. 2026-06-21 01:58 UTCEPSS rescore
  5. 2026-06-15 17:47 UTCEPSS rescore
  6. 2026-06-13 22:59 UTCEPSS rescore
  7. 2026-06-13 22:59 UTCEPSS rescore
  8. 2026-06-11 13:59 UTCEPSS rescore
  9. 2026-06-10 13:21 UTCEPSS rescore
  10. 2026-06-09 02:00 UTCOSV refresh
  11. 2026-06-08 14:16 UTCEPSS rescore
  12. 2026-06-08 14:16 UTCEPSS rescore
  13. 2026-06-05 22:46 UTCEPSS rescore
  14. 2026-06-05 22:46 UTCEPSS rescore
  15. 2026-05-31 00:15 UTCEPSS rescore
  16. 2026-05-31 00:15 UTCEPSS rescore
  17. 2026-05-27 13:39 UTCEPSS rescore
  18. 2026-05-27 13:39 UTCEPSS rescore
  19. 2026-05-26 13:43 UTCEPSS rescore
  20. 2026-05-26 13:43 UTCEPSS rescore
  21. 2026-05-24 06:56 UTCEG score recompute
  22. 2026-05-24 06:56 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2023/CVE-2023-49785.yaml
    First seen Jan 1, 2023

    ChatGPT-Next-Web - SSRF/XSS

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-49785?
CVE-2023-49785 is a critical vulnerability published on March 12, 2024. 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…
When was CVE-2023-49785 disclosed?
CVE-2023-49785 was first published in the National Vulnerability Database on March 12, 2024, with the most recent update on April 10, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-49785 actively exploited?
CVE-2023-49785 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-49785?
CVE-2023-49785 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2023-49785?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-49785, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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