Description
Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, the Caldav endpoint allows login using Basic Authentication, which in turn allows users to bypass the TOTP on 2FA-enabled accounts. The user can then access standard project information that would normally be protected behind 2FA (if enabled), such as project name, description, etc. Version 2.2.0 patches the issue.
Scores
CVSS v3
4.3
EPSS
0.0013
EPSS Percentile
32.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-288
Status
published
Products (3)
code.vikunja.io/api
0Go
go-vikunja/vikunja
< 2.2.0
vikunja/vikunja
< 2.2.0
Published
Mar 24, 2026
Tracked Since
Mar 24, 2026