CVE-2026-33312 PUBLISHED

Read-only Vikunja users can delete project background images via broken object-level authorization

Assigner: GitHub_M
Reserved: 18.03.2026 Published: 20.03.2026 Updated: 20.03.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	go-vikunja
Product	vikunja
Versions	Version >= 0.20.2, < 2.2.0 is affected

References

Problem Types

CWE-863: Incorrect Authorization CWE