What is CVE-2026-32104?

CVE-2026-32104 is a medium-severity vulnerability in Withstudiocms Studiocms, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.4/10. Published 2026-03-11.

How severe is CVE-2026-32104?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in Withstudiocms Studiocms

CVE-2026-32104

StudioCMS is a server-side-rendered, Astro native, headless content management system. Prior to 0.4.3, the updateUserNotifications endpoint accepts a user ID from the request payload and uses it to update that user's notification preferenc…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (5.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.

Affected products

Withstudiocms Studiocms — versions < 0.4.3

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

https://github.com/withstudiocms/studiocms/security/advisories/GHSA-9v82-xrm4-mp52 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-32104?: CVE-2026-32104 is a medium-severity vulnerability in Withstudiocms Studiocms, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.4/10. Published 2026-03-11.
How severe is CVE-2026-32104?: Medium severity. CVSS v3 base score is 5.4 out of 10.