Directory traversal vulnerability in NextChat thru 2.16.0 due to the WebDAV proxy failing…
Priority HIGH 72CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.
Summary
Directory traversal vulnerability in NextChat thru 2.16.0 due to the WebDAV proxy failing to canonicalize or reject dot path segments in its catch-all route, allowing attackers to gain sensitive information via authenticated or anonymous WebDAV endpoints.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00915 60th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nextchat:nextchat:*:*:*:*:*:*:*:* | up to 2.16.0 | Vulnerable | ChatGPTNextWeb |
- cpe:2.3:a:nextchat:nextchat:*:*:*:*:*:*:*:* Versions up to 2.16.0 Vulnerable ·ChatGPTNextWeb
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-50735
- 2026-10-03 Alias added: GHSA-6p2w-vm5p-8648
References
More ChatGPTNextWeb Nextchat vulnerabilities
- TI-2023-27194 NextChat vulnerable to Server-Side Request Forgery and Cross-site Scripting CVSS 3.1CRITICAL 9.8
- TI-2026-06301 ChatGPTNextWeb NextChat Artifacts Endpoint route.ts storeUrl server-side request forgery CVSS 4.0MEDIUM 6.9
- TI-2026-06300 ChatGPTNextWeb NextChat route.ts proxyHandler server-side request forgery CVSS 4.0MEDIUM 6.9
Sources
- CVE-2025-50735 · CVE Program
- CVE-2025-50735 · NVD
- FIRST EPSS
- GHSA-6p2w-vm5p-8648 · GitHub Advisory Database · CC BY 4.0
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