CVE-2026-32101

StudioCMS is a server-side-rendered, Astro native, headless content management system. Prior to 0.3.1, the S3 storage manager's isAuthorized() function is declared async (returns Promise<boolean>) but is called without await in both the POST and PUT handlers. Since a Promise object is always truthy in JavaScript, !isAuthorized(type) always evaluates to false, completely bypassing the authorization check. Any authenticated user with the lowest visitor role can upload, delete, rename, and list all files in the S3 bucket. This vulnerability is fixed in 0.3.1.

CVSS v3 7.6 HIGH

7.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/withstudiocms/studiocms/security/advisories/GHSA-mm78-fgq8-6pgr	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:studiocms:studiocms:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-11 21:16

Updated : 2026-03-17 15:24

NVD link : CVE-2026-32101

Mitre link : CVE-2026-32101

CVE.ORG link : CVE-2026-32101

JSON object : View

Products Affected

studiocms

studiocms

CWE

CWE-863

Incorrect Authorization

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