Cross-Domain Policy Vulnerability in Farion1231 CC-Switch ProxyServer
CVE-2026-6143

5.3MEDIUM

Key Information:

Vendor

Farion1231

Status
Cc-switch
Vendor
CVE Published:
13 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6143?

A security flaw has been identified in Farion1231's CC-Switch, specifically in the ProxyServer component found in the file src-tauri/src/proxy/server.rs. This vulnerability allows for a permissive cross-domain policy, potentially exposing sensitive functionalities to untrusted domains. The vulnerability can be exploited remotely, making it a significant risk for users and organizations. Furthermore, an exploit for this vulnerability has been publicly released, increasing the urgency for affected users to take immediate action to secure their systems.

Affected Version(s)

cc-switch 3.12.0

cc-switch 3.12.1

cc-switch 3.12.2

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.

CVE-2026-6143 - Proof of Concept

References

https://vuldb.com/vuln/357007
vdb-entry
https://vuldb.com/vuln/357007/cti
signaturepermissions-required
https://vuldb.com/submit/796145
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

r00tuser (VulDB User)
.