漏洞信息
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Vulnerability Title
Lobe Chat has IDOR in Knowledge Base File Removal that Allows Cross User File Deletion
Vulnerability Description
LobeChat is an open source chat application platform. Prior to version 2.0.0-next.193, `knowledgeBase.removeFilesFromKnowledgeBase` tRPC ep allows authenticated users to delete files from any knowledge base without verifying ownership. `userId` filter in the database query is commented out, so it's enabling attackers to delete other users' KB files if they know the knowledge base ID and file ID. While the vulnerability is confirmed, practical exploitation requires knowing target's KB ID and target's file ID. These IDs are random and not easily enumerable. However, IDs may leak through shared links, logs, referrer headers and so on. Missing authorization check is a critical security flaw regardless. Users should upgrade to version 2.0.0-next.193 to receive a patch.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Vulnerability Type
访问控制不恰当
Vulnerability Title
Lobe Chat 安全漏洞
Vulnerability Description
Lobe Chat是LobeHub开源的一个开源、高性能的聊天机器人框架。 Lobe Chat 2.0.0-next.193之前版本存在安全漏洞，该漏洞源于缺少所有权验证，可能导致任意文件删除。
CVSS Information
N/A
Vulnerability Type
N/A