CVE-2026-33700

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the `DELETE /api/v1/projects/:project/shares/:share` endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares from other projects by providing their own project ID combined with the target share ID. Version 2.2.1 patches the issue.

CVSS v3 4.9 MEDIUM

4.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-f95f-77jx-fcjc	Vendor Advisory
https://vikunja.io/changelog/vikunja-v2.2.2-was-released	Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*

History

30 Mar 2026, 13:35

Type	Values Removed	Values Added
References	~~() https://github.com/go-vikunja/vikunja/security/advisories/GHSA-f95f-77jx-fcjc -~~	() https://github.com/go-vikunja/vikunja/security/advisories/GHSA-f95f-77jx-fcjc - Vendor Advisory
References	~~() https://vikunja.io/changelog/vikunja-v2.2.2-was-released -~~	() https://vikunja.io/changelog/vikunja-v2.2.2-was-released - Release Notes
CPE		cpe:2.3:a:vikunja:vikunja::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.9
First Time		Vikunja vikunja Vikunja

Information

Published : 2026-03-24 16:16

Updated : 2026-03-30 13:35

NVD link : CVE-2026-33700

Mitre link : CVE-2026-33700

CVE.ORG link : CVE-2026-33700

JSON object : View

Products Affected

vikunja

vikunja

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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