CVE-2026-39423

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/1Panel-dev/MaxKB/commit/34fb95bde9574c5b3a734ab00c7f29b9e7d32669	Patch
https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0	Release Notes
https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-462x-99gf-mp79	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:maxkb:maxkb:*:*:*:*:-:*:*:*

History

20 Apr 2026, 17:34

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.4
First Time		Maxkb maxkb Maxkb
CPE		cpe:2.3:a:maxkb:maxkb:::::-:::*
References	~~() https://github.com/1Panel-dev/MaxKB/commit/34fb95bde9574c5b3a734ab00c7f29b9e7d32669 -~~	() https://github.com/1Panel-dev/MaxKB/commit/34fb95bde9574c5b3a734ab00c7f29b9e7d32669 - Patch
References	~~() https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0 -~~	() https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0 - Release Notes
References	~~() https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-462x-99gf-mp79 -~~	() https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-462x-99gf-mp79 - Vendor Advisory

14 Apr 2026, 01:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-14 01:16

Updated : 2026-04-20 17:34

NVD link : CVE-2026-39423

Mitre link : CVE-2026-39423

CVE.ORG link : CVE-2026-39423

JSON object : View

Products Affected

maxkb

maxkb

CWE

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')

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