Auth bypass in Directus

CVE-2023-38503

Directus is a real-time API and App dashboard for managing SQL database content. Starting in version 10.3.0 and prior to version 10.5.0, the permission filters (i.e. `user_created IS $CURRENT_USER`) are not properly checked when using GraphQL subscription resulting in unauthorized users getting event on their subscription which they should not be receiving according to the permissions. This can be any collection but out-of-the box the `directus_users` collection is configured with such a permissions filter allowing you to get updates for other users when changes happen. Version 10.5.0 contains a patch. As a workaround, disable GraphQL subscriptions.

Vulnerability class: Information Disclosure

EPSS: 0.005 (39.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-38503?
CVE-2023-38503 is a medium-severity vulnerability in Directus, classified under Information Disclosure. CVSS score: 5.7/10. Published 2023-07-25.
How severe is CVE-2023-38503?
Medium severity. CVSS v3 base score is 5.7 out of 10.