Cross Site Scripting Vulnerability in 1Panel-dev MaxKB Public Chat Interface
CVE-2026-6106

5.1MEDIUM

Key Information:

Vendor

1panel-dev

Status
Maxkb
Vendor
CVE Published:
11 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6106?

A cross site scripting vulnerability exists in the Public Chat Interface of 1Panel-dev MaxKB, specifically in the StaticHeadersMiddleware function located in static_headers_middleware.py. An attacker can exploit this vulnerability by manipulating the 'Name' argument, enabling the injection of malicious scripts. This issue can be triggered remotely, making it critical for users of affected versions (up to 2.2.1) to upgrade to version 2.8.0, which includes a patch (commit ID: 026a2d623e2aa5efa67c4834651e79d5d7cab1da) released in response to the vulnerability. Users are urged to update promptly to ensure the security of their applications.

Affected Version(s)

MaxKB 2.2.0

MaxKB 2.2.1

MaxKB 2.8.0

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-2026-6106 - Proof of Concept

References

https://vuldb.com/vuln/356965
vdb-entrytechnical-description
https://vuldb.com/vuln/356965/cti
signaturepermissions-required
https://vuldb.com/submit/781810
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ana10gy (VulDB User)
VulDB CNA Team
.