CVE-2026-32638
StudioCMS REST getUsers Exposes Owner Account Records to Admin Tokens
LOW 2.7EPSS 0.4%
StudioCMS is a server-side-rendered, Astro native, headless content management system. Prior to 0.4.4, the REST API `getUsers` endpoint in StudioCMS uses the attacker-controlled `rank` query parameter to decide whether owner accounts should be filtered from the result set. As a result, an admin token can request `rank=owner` and receive owner account records, including IDs, usernames, display names, and email addresses, even though the adjacent `getUser` endpoint correctly blocks admins from viewing owner users. This is an authorization inconsistency inside the same user-management surface. Version 0.4.4 fixes the issue.
- Affected
- withstudiocms · studiocms
- CVSS v3.1 GITHUB
- 2.7 LOW
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - EPSS
- 0.39% chance of exploitation in the next 30 days, 32nd percentile
- Published
- 2026-03-18
- Updated
- 2026-03-19
Proof-of-concept exploits (1)
Security advisories
- withstudiocms/studiocms/security/advisories/GHSA-xvf4-ch4q-2m24
- withstudiocms/studiocms/commit/aebe8bcb3618bb07c6753e3f5c982c1fe6adea64