CVE-2026-123506
Vikunja 2.2.0 before 2.7.1 Token Scope Bypass via Project Webhook Endpoints
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
Vikunja from 2.2.0 before 2.7.1 contains an authorization bypass vulnerability that allows holders of tokens scoped only to projects_webhooks to manage the owner's user-level webhooks by supplying user_id in request bodies. Attackers can register user webhooks to their own receiver to obtain reminders and task payloads from all owner projects, and read, change or delete existing user webhooks.
| CWE | CWE-863 |
| Vendor | go-vikunja |
| Product | vikunja |
| Published | Nov 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
go-vikunja / vikunja
2.2.0 < 2.7.1