CVE-2026-23733

Severity CVSS v4.0:

Pending analysis

Type:

CWE-94 Code Injection

Publication date:

18/01/2026

Last modified:

18/01/2026

Description

LobeChat is an open source chat application platform. Prior to version 2.0.0-next.180, a stored Cross-Site Scripting (XSS) vulnerability in the Mermaid artifact renderer allows attackers to execute arbitrary JavaScript within the application context. This XSS can be escalated to Remote Code Execution (RCE) by leveraging the exposed `electronAPI` IPC bridge, allowing attackers to run arbitrary system commands on the victim&#39;s machine. Version 2.0.0-next.180 patches the issue.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:L CVSS v3.1 Severity and Metrics:

Base Score: 6.40 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:L

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): High
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): High
Integrity (I): Low
Availability (A): Low

Base Score 3.x

6.40

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://github.com/lobehub/lobe-chat/security/advisories/GHSA-4gpc-rhpj-9443