PT-2026-92098 · Vikunja · Vikunja

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CVE-2026-91984

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Published

2026-09-15

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Updated

2026-10-09

CVSS v4.0

5.3

Medium

VectorAV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions Vikunja versions prior to 2.6.0
Description Authenticated attackers can insert task position rows into project views belonging to other tenants. This occurs because the application fails to validate that the user-supplied project view id in task-position requests belongs to the project associated with the task. The issue affects the POST and PUT task-position endpoints.
Recommendations Update to version 2.6.0 or later.

Exploit

Fix

Incorrect Authorization

IDOR

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Weakness Enumeration

Related Identifiers

CVE-2026-91984
GHSA-CCGQ-FX7H-2V4C
GHSA-W39F-H553-H2MX

Affected Products

Vikunja