CVE-2026-39423 MEDIUM

CVE-2026-39423: Stored XSS via Eval Injection in EchartsRander Component

Vendor 1Panel-Dev
Product MaxKB
Weakness CWE-79 · XSS
Published April 14, 2026
Last update April 14, 2026
View on NVD All CVEs

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 14, 2026 CVE published
April 14, 2026 Record updated