File Exfiltration Vulnerability in Visual Studio Code Extensions by Ritwick Dey
CVE-2025-65717

4.3MEDIUM

Key Information:

Vendor

Ritwick Dey

Status
Visual Studio Code Extensions Live Server
Vendor
CVE Published:
16 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-65717?

A vulnerability exists in Visual Studio Code Extensions Live Server v5.7.9 that enables malicious actors to exfiltrate sensitive files from users' systems through crafted HTML pages. User interaction is required to initiate the attack, exposing them to potential data breaches. It is crucial for users of this extension to remain vigilant and to apply necessary updates or mitigations.

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Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

live-server-evil-crawler
Created by natsuki-engr

References

https://github.com/ritwickdey/vscode-live-server
https://www.ox.security/blog/cve-2025-65717-live-server-v...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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