PT-2025-44793 · Nextchat · Nextchat

Published 2025-11-03 · Updated 2025-11-04 · CVE-2025-50735

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions NextChat versions through 2.16.0

Description A directory traversal issue exists in NextChat due to the WebDAV proxy not properly handling dot path segments within its catch-all route. This allows attackers to potentially access sensitive information through authenticated or anonymous WebDAV endpoints. The issue stems from a failure to canonicalize or reject these path segments.

Recommendations Update NextChat to a version later than 2.16.0.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2025-50735

Affected Products

Nextchat

References · 6

• 🔥 https://github.com/fai1424/Vulnerability-Research/tree/main/CVE-2025-50735 · Exploit
• https://osv.dev/vulnerability/CVE-2025-50735 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-50735 · Security Note
• https://github.com/ChatGPTNextWeb/NextChat/blob/main/app/api/webdav/%5B...path%5D/route.ts · Note
• https://github.com/ChatGPTNextWeb/NextChat/blob/main/app/utils/cloud/webdav.ts · Note
• https://t.me/CVEtracker/36444 · Telegram Post