What’s Vulnerable › Vulnerabilities

CVE-2026-30945: StudioCMS: IDOR — Arbitrary API Token Revocation Leading to Denial of Service

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-10 · updated 2026-06-17
• Weakness: CWE-639

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 products

• withstudiocms studiocms: before 0.4.0 — fixed in 0.4.0

How to fix

Upgrade to a fixed version: withstudiocms studiocms 0.4.0. Check the vendor advisory for mitigations.

References

• https://github.com/withstudiocms/studiocms/commit/9eec9c3b45523b635cfe16d55aa55afabacbebe3
• https://github.com/withstudiocms/studiocms/releases/tag/studiocms@0.4.0
• https://github.com/withstudiocms/studiocms/security/advisories/GHSA-8rgj-vrfr-6hqr

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