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I. Basic Information for CVE-2026-33312
Vulnerability Information

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Vulnerability Title
Read-only Vikunja users can delete project background images via broken object-level authorization
Source: NVD (National Vulnerability Database)
Vulnerability Description
Vikunja is an open-source self-hosted task management platform. Starting in version 0.20.2 and prior to version 2.2.0, the `DELETE /api/v1/projects/:project/background` endpoint checks `CanRead` permission instead of `CanUpdate`, allowing any user with read-only access to a project to permanently delete its background image. Version 2.2.0 fixes the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Vikunja 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vikunja是Vikunja开源的一个待办事项应用程序。 Vikunja 0.20.2至2.2.0之前版本存在安全漏洞,该漏洞源于DELETE /api/v1/projects/:project/background端点错误检查CanRead权限而非CanUpdate权限,可能导致具有只读权限的用户永久删除项目背景图片。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
go-vikunjavikunja >= 0.20.2, < 2.2.0 -
II. Public POCs for CVE-2026-33312
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III. Intelligence Information for CVE-2026-33312
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