CVE-2026-39423
Medium
Description
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.
SeverityMedium
CVSS5.4
Exploit probability—
ProductMaxkb
PublishedApr 14, 2026
First seenApr 14, 2026
Weakness typeCWE-79Cross-site scripting (XSS)CWE-95CWE-95
How to fix
Update
- maxkb maxkb2.8.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| maxkb maxkb | v < 2.8.0 | 2.8.0 |
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