CVE-2026-33677

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the `GET /api/v1/projects/:project/webhooks` endpoint returns webhook BasicAuth credentials (`basic_auth_user` and `basic_auth_password`) in plaintext to any user with read access to the project. While the existing code correctly masks the HMAC `secret` field, the BasicAuth fields added in a later migration were not given the same treatment. This allows read-only collaborators to steal credentials intended for authenticating against external webhook receivers. Version 2.2.1 patches the issue.

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

0.30% chance of exploitation in the next 30 days, 22th percentile

Published

2026-03-24

Proof-of-concept exploits (1)

• advisories/GHSA-7c2g-p23p-4jg3

References

• CVE Record
• NVD entry

Related

• CVE-2026-33676
• CVE-2026-33678
• CVE-2026-33675
• CVE-2026-33679
• CVE-2026-33671
• CVE-2026-33680