What is CVE-2026-32638?

CVE-2026-32638 is a low-severity vulnerability in Withstudiocms Studiocms, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 2.7/10. Published 2026-03-18.

How severe is CVE-2026-32638?

Low severity. CVSS v3 base score is 2.7 out of 10.

Auth bypass in Withstudiocms Studiocms

CVE-2026-32638

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 shoul…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (7.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.

Affected products

Withstudiocms Studiocms — versions < 0.4.4

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

https://github.com/withstudiocms/studiocms/security/advisories/GHSA-xvf4-ch4q-2m24 (x_refsource_CONFIRM)
https://github.com/withstudiocms/studiocms/commit/aebe8bcb3618bb07c6753e3f5c982c1fe6adea64 (x_refsource_MISC)
https://github.com/withstudiocms/studiocms/releases/tag/studiocms@0.4.4 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-32638?: CVE-2026-32638 is a low-severity vulnerability in Withstudiocms Studiocms, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 2.7/10. Published 2026-03-18.
How severe is CVE-2026-32638?: Low severity. CVSS v3 base score is 2.7 out of 10.