Vulnerability DatabaseCVE-2026-39423
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CVE-2026-39423
Published:April 14, 2026
Updated:April 23, 2026
MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain an Eval Injection vulnerability in the Markdown rendering engine that allows any user capable of interacting with the AI chat interface to execute arbitrary JavaScript in the browsers of other users, including administrators, resulting in Stored Cross-Site Scripting (XSS). This issue has been fixed in version 2.8.0.
Affected Packages
https://github.com/1Panel-dev/MaxKB.git (GITHUB):
Affected version(s) >=v0.9.0 <v2.8.0
Fix Suggestion:
Update to version v2.8.0
Related Resources (3)
https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-462x-99gf-mp79
https://github.com/1Panel-dev/MaxKB/commit/34fb95bde9574c5b3a734ab00c7f29b9e7d32669
https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79
Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
CWE-95
EPSS
Base Score:
0.04