Vulnerability · Published Mar 10, 2026 · Assigned by GitHub_M
CVE-2026-30945StudioCMS: IDOR — Arbitrary API Token Revocation Leading to Denial of Service
High 7.1
In plain English
A high-severity authorization bypass via user-controlled key in studiocms from withstudiocms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
StudioCMS is a server-side-rendered, Astro native, headless content management system. Prior to 0.4.0, the DELETE /studiocms_api/dashboard/api-tokens endpoint allows any authenticated user with editor privileges or above to revoke API tokens belonging to any other user, including admin and owner accounts. The handler accepts tokenID and userID directly from the request payload without verifying token ownership, caller identity, or role hierarchy. This enables targeted denial of service against critical integrations and automations. This vulnerability is fixed in 0.4.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | studiocms | 0.4.0 | GHSA-8rgj-vrfr-6hqr |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| withstudiocms | studiocms | < 0.4.0 |
Weakness: CWE-639, CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H