CVE-2026-32101
MEDIUM EPSS 8.1%
Published Mar 11, 20263mo ago · Modified Jun 17, 20262w ago
6.3 CVSS 3.1
Published Mar 11, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago
Description
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability Low
Threat Intelligence
EPSS Exploit Probability
8.1% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available
Weaknesses 1
CWE-863 Incorrect Authorization Authorization
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| studiocms | studiocms | * | <0.3.1 |
References 1
- github.com https://github.com/withstudiocms/studiocms/security/advisories/GHSA-mm78-fgq8-6pgr
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.