Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Studiocms | Studiocms | < 0.3.1 |
Related Weaknesses (CWE)
References
- https://github.com/withstudiocms/studiocms/security/advisories/GHSA-mm78-fgq8-6pExploitVendor Advisory
FAQ
What is CVE-2026-32101?
CVE-2026-32101 is a vulnerability with a CVSS score of 7.6 (HIGH). 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...
How severe is CVE-2026-32101?
CVE-2026-32101 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-32101?
Check the references section above for vendor advisories and patch information. Affected products include: Studiocms Studiocms.