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CVE-2026-40103

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CVE-2026-40103

Published: Apr 10, 2026

Modified: Apr 15, 2026

PUBLISHED

CVSS v3.1

4.3

MEDIUM

Description

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, Vikunja's scoped API token enforcement for custom project background routes is method-confused. A token with only projects.background can successfully delete a project background, while a token with only projects.background_delete is rejected. This is a scoped-token authorization bypass. This vulnerability is fixed in 2.3.0.

VendorProductVersions

go-vikunja

vikunja

affected
< 2.3.0

Weaknesses (CWE)

CWE-836

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

References

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