漏洞信息
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Vulnerability Title
Vikunja - Unauthenticated Instance-Wide Data Breach via Link Share Hash Disclosure Chained with Cross-Project Attachment IDOR
Vulnerability Description
Vikunja before 2.2.1 contains an authorization flaw where the LinkSharing.ReadAll endpoint exposes share hashes to users with read access, enabling permission escalation to admin-level shares. The GetTaskAttachment endpoint performs permission checks against user-supplied task IDs but fetches attachments by sequential ID without verifying ownership, allowing attackers to download and delete all file attachments across all projects instance-wide.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability Type
通过用户控制密钥绕过授权机制
Vulnerability Title
Vikunja 授权问题漏洞
Vulnerability Description
Vikunja是Vikunja团队开源的一个待办事项应用程序。 Vikunja 2.2.1之前版本存在授权问题漏洞,该漏洞源于LinkSharing.ReadAll端点暴露共享哈希,且GetTaskAttachment端点按顺序ID获取附件时未验证所有权,可能导致授权权限提升至管理员级别。
CVSS Information
N/A
Vulnerability Type
N/A