CVE-2026-39423

Stored XSS via Eval Injection in EchartsRander Component

State: Published
Severity: 6.9 Medium
Published: Apr 14, 2026
Updated: Apr 14, 2026
Reserved: Apr 7, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	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	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

Affected Products

Product	Versions
MaxKB1Panel-dev	< 2.8.0Affected

References

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