CVE-2023-49785

CRITICALNVD 9.19.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

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, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this weekElevated

Also known asEUVD-2024-2633 (ENISA EUVD) · GHSA-qf3q-9f3h-cjp9 (GitHub Security Advisories)Source: ENISA EUVD

9.1EG
EchelonGraph verdictPlan mitigationThe upstream fix is not in a release yet: until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it (the SSVC decision on this page).
  • High exploitation likelihood — EPSS 83%
CISA-KEV: Not listedEPSS PROB: 83%CVSS: 9.1Exploit: No code on recordExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

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
9.1CRITICALmedium confidence
EG Risk
89
EG Risk 89/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation83% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it.
EPSS PROB
83%
EPSS %ILE
99th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
83% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

March 12, 2024

Last Modified

April 10, 2025

Advisory Details (5)

Auto-updated Aug 2, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
Web page

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
Web page

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

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

[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
Web page

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

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

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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
nextchat—
  • every version through 2.11.2: no fix on record
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 54× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 94 of 133 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 6 repeat rows among the latest 100 are merged into the row they repeat. The 39 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 01:33 UTCEG score recompute
  2. 2026-11-02 01:32 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-11-01 16:31 UTCEPSS rescoreEPSS 83% · 99th percentile
  4. 2026-11-01 00:07 UTCEG score recompute
  5. 2026-11-01 00:07 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  6. 2026-10-30 22:38 UTCEG score recompute
  7. 2026-10-30 22:38 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  8. 2026-10-30 16:31 UTCEPSS rescoreEPSS 83% · 99th percentile
  9. 2026-10-29 21:12 UTCEG score recompute
  10. 2026-10-29 21:12 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  11. 2026-10-28 19:47 UTCEG score recompute
  12. 2026-10-28 19:46 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  13. 2026-10-28 16:29 UTCEPSS rescoreEPSS 83% · 99th percentile
  14. 2026-10-27 18:20 UTCEG score recompute
  15. 2026-10-27 18:20 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  16. 2026-10-26 16:53 UTCEG score recompute
  17. 2026-10-26 16:52 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  18. 2026-10-25 16:30 UTCEPSS rescoreEPSS 83% · 99th percentile
  19. 2026-10-25 15:13 UTCEG score recompute
  20. 2026-10-25 15:12 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  21. 2026-10-24 13:45 UTCEG score recompute
  22. 2026-10-24 13:45 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  23. 2026-10-23 12:19 UTCEG score recompute
  24. 2026-10-23 12:19 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-10-22 16:31 UTCEPSS rescoreEPSS 83% · 99th percentile
Show 69 more
  1. 2026-10-22 10:51 UTCEG score recompute
  2. 2026-10-22 10:51 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-10-21 16:29 UTCEPSS rescoreEPSS 83% · 99th percentile
  4. 2026-10-21 09:23 UTCEG score recompute
  5. 2026-10-21 09:23 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  6. 2026-10-20 16:30 UTCEPSS rescoreEPSS 83% · 99th percentile
  7. 2026-10-20 07:57 UTCEG score recompute
  8. 2026-10-20 07:57 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  9. 2026-10-19 06:29 UTCEG score recompute
  10. 2026-10-19 06:29 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  11. 2026-10-18 05:02 UTCEG score recompute
  12. 2026-10-18 05:01 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  13. 2026-10-17 16:30 UTCEPSS rescoreEPSS 83% · 99th percentile
  14. 2026-10-17 03:34 UTCEG score recompute
  15. 2026-10-17 03:34 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  16. 2026-10-16 02:08 UTCEG score recompute
  17. 2026-10-16 02:08 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  18. 2026-10-14 21:57 UTCEG score recompute
  19. 2026-10-14 21:57 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  20. 2026-10-14 16:30 UTCEPSS rescoreEPSS 83% · 99th percentile
  21. 2026-10-13 17:43 UTCEG score recompute
  22. 2026-10-13 17:43 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  23. 2026-10-12 16:17 UTCEG score recompute
  24. 2026-10-12 16:16 UTCGHSA enrichmentGHSA-qf3q-9f3h-cjp9 · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-10-11 21:40 UTCEG score recompute
  26. 2026-10-11 20:24 UTCOSV refresh
  27. 2026-10-11 13:45 UTCEPSS rescoreEPSS 83% · 99th percentile
  28. 2026-10-08 17:06 UTCEPSS rescoreEPSS 83% · 99th percentile
  29. 2026-10-06 15:15 UTCEPSS rescoreEPSS 83% · 99th percentile
  30. 2026-09-30 16:34 UTCEG score recompute
  31. 2026-09-24 14:01 UTCEPSS rescoreEPSS 83% · 99th percentile
  32. 2026-09-22 14:46 UTCEPSS rescoreEPSS 83% · 99th percentile
  33. 2026-09-22 06:15 UTCOSV refresh
  34. 2026-09-21 20:31 UTCEPSS rescoreEPSS 83% · 99th percentile
  35. 2026-09-18 19:26 UTCEPSS rescoreEPSS 83% · 99th percentile
  36. 2026-09-17 19:25 UTCEPSS rescoreEPSS 83% · 99th percentile
  37. 2026-09-16 14:06 UTCEPSS rescoreEPSS 83% · 99th percentile
  38. 2026-09-13 16:44 UTCEPSS rescoreEPSS 83% · 99th percentile
  39. 2026-09-06 13:45 UTCEPSS rescoreEPSS 83% · 99th percentile
  40. 2026-09-05 15:26 UTCEPSS rescoreEPSS 83% · 99th percentile
  41. 2026-09-04 05:04 UTCEPSS rescoreEPSS 83% · 99th percentile
  42. 2026-09-03 03:29 UTCOSV refresh
  43. 2026-09-01 13:51 UTCEPSS rescoreEPSS 83% · 99th percentile
  44. 2026-08-30 19:15 UTCEPSS rescoreEPSS 83% · 99th percentile
  45. 2026-08-28 21:39 UTCEPSS rescoreEPSS 83% · 99th percentile
  46. 2026-08-26 14:44 UTCEPSS rescoreEPSS 83% · 99th percentile
  47. 2026-08-25 13:46 UTCEPSS rescoreEPSS 83% · 99th percentile
  48. 2026-08-24 14:14 UTCEPSS rescoreEPSS 83% · 99th percentile
  49. 2026-08-21 23:47 UTCEPSS rescoreEPSS 83% · 99th percentile
  50. 2026-08-20 22:53 UTCEPSS rescoreEPSS 83% · 99th percentile
  51. 2026-08-16 16:23 UTCOSV refresh
  52. 2026-08-16 02:12 UTCEPSS rescoreEPSS 83% · 99th percentile
  53. 2026-08-15 01:28 UTCEPSS rescoreEPSS 83% · 99th percentile
  54. 2026-08-12 13:49 UTCEPSS rescoreEPSS 83% · 99th percentile
  55. 2026-08-06 13:45 UTCEPSS rescoreEPSS 83% · 99th percentile
  56. 2026-08-04 10:35 UTCEPSS rescoreEPSS 83% · 99th percentile
  57. 2026-08-01 10:06 UTCOSV refresh
  58. 2026-08-01 04:14 UTCEPSS rescoreEPSS 83% · 99th percentile
  59. 2026-07-30 16:26 UTCEPSS rescoreEPSS 83% · 99th percentile
  60. 2026-07-30 01:28 UTCEPSS rescoreEPSS 83% · 99th percentile
  61. 2026-07-26 14:52 UTCEPSS rescoreEPSS 83% · 99th percentile
  62. 2026-07-25 14:16 UTCEPSS rescoreEPSS 83% · 99th percentile
  63. 2026-07-24 14:16 UTCEPSS rescoreEPSS 83% · 99th percentile
  64. 2026-07-23 02:28 UTCEG score recompute
  65. 2026-07-22 23:15 UTCEG score recompute
  66. 2026-07-22 14:06 UTCEPSS rescoreEPSS 83% · 99th percentile
  67. 2026-07-21 15:23 UTCEPSS rescoreEPSS 83% · 99th percentile
  68. 2026-07-20 17:06 UTCEPSS rescoreEPSS 83% · 99th percentile
  69. 2026-07-19 14:29 UTCEPSS rescoreEPSS 83% · 99th percentile

Public detection templates

(1 reference)

A public Nuclei detection template is referenced for this CVE. A detection template checks whether a system is affected; it is not necessarily exploit code.

  • Nucleihttp/cves/2023/CVE-2023-49785.yaml
    Published Mar 12, 2024

    ChatGPT-Next-Web - SSRF/XSS

    Open source ↗

Frequently asked(5)

What is CVE-2023-49785?
CVE-2023-49785 is a critical-severity vulnerability; its CVE record was 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 the CVE record for CVE-2023-49785 published?
The CVE record for CVE-2023-49785 was published on March 12, 2024. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of April 10, 2025; the record at its source may have been updated since.
Is CVE-2023-49785 actively exploited?
CVE-2023-49785 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 83% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
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?
An upstream fix for CVE-2023-49785 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-49785

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