Description
Vikunja from 2.2.0 before 2.7.0 contains a permissive CORS configuration that trusts every localhost and 127.0.0.1 port with credentials, even when service.publicurl is set. Attackers controlling a page on any localhost port can send a credentialed request to the token refresh endpoint and read the returned bearer JWT to take over the logged-in user's account.
Metrics
CVSS 3.1 6.3/10
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:NWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Oct 17, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Deferred