CVE-2026-123524
Vikunja 0.23.0 before 2.7.1 Information Disclosure via Webhook related_tasks Payload
CVSS Score
5.7
EPSS Score
0.0%
EPSS Percentile
0th
Vikunja from 0.23.0 before 2.7.1 contains an information disclosure vulnerability that allows project collaborators with write access to read tasks from inaccessible projects by registering webhooks. Because webhook payloads are built with the triggering user's permissions, attackers receive related_tasks titles, descriptions and metadata from private projects whenever another user modifies a linked task.
| 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:R/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
go-vikunja / vikunja
0.23.0 < 2.7.1
References
Credits
🔍 lissy93