MEDIUMCVSS v3.1 5.4Vulnerability

CVE-2026-111918

Vikunja from 1.0.0-rc0 before 2.7.0 contains an improper authorization vulnerability in RecalculateTaskPositions that allows authenticated users with zero accessible projects to write task_positions rows for all tasks instance-wide. Attackers can delete their Inbox after repointing default_project_id, then create empty-filter saved filters to persist cross-tenant references and amplify writes for denial of service.

Properties

Severity
MEDIUM
Nvd fetched at
2026-10-20T21:14:08.448323+00:00
Epss score
0.00176
Cvss severity
MEDIUM
Cvss score
5.4
Retrieved at
2026-10-21T01:24:48+00:00
Last source
FIRST EPSS
Score
5.4
Cvss version
3.1
Cve id
CVE-2026-111918
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
First seen by Signal
2026-10-18T13:39:03+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Published at
2026-10-17T19:16:34.403
Last modified
2026-10-19T21:14:14.150
Epss percentile
0.06767

Related Entities (1)

HAS_WEAKNESS (1)

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CVE-2026-111918 (CVSS v3.1 5.4) — Ninja Signal Threat Intelligence | Ninja Signal