{"id":"CVE-2026-32638","aliases":["GHSA-xvf4-ch4q-2m24"],"url":"https://o3.security/vulnerability/CVE-2026-32638","summary":"StudioCMS REST getUsers Exposes Owner Account Records to Admin Tokens","details":"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.","published":"2026-03-18T20:41:14.034Z","modified":"2026-08-12T03:51:21.989254749Z","cvss":{"score":2.7,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N"},"epss":{"score":0.00375,"percentile":0.30205,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"studiocms","fixedVersion":"0.4.4"}],"fix":{"url":"https://github.com/withstudiocms/studiocms/commit/aebe8bcb3618bb07c6753e3f5c982c1fe6adea64","label":"withstudiocms/studiocms@aebe8bc"},"references":[{"type":"WEB","url":"https://github.com/withstudiocms/studiocms/releases/tag/studiocms@0.4.4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32638.json"},{"type":"ADVISORY","url":"https://github.com/withstudiocms/studiocms/security/advisories/GHSA-xvf4-ch4q-2m24"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32638"},{"type":"FIX","url":"https://github.com/withstudiocms/studiocms/commit/aebe8bcb3618bb07c6753e3f5c982c1fe6adea64"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:21.989254749Z"}}