Vulnerability details

CVE-2026-30945

withstudiocms studiocms

StudioCMS: IDOR — Arbitrary API Token Revocation Leading to Denial of Service

CVSS 3.1

7.1High

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.

CVSS scores

Score	Version	Source	Vector
7.1High	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H`

Affected products

Vendor	Product	Versions	Source
withstudiocms	studiocms	< 0.4.0	CVEProject cvelistV5 (CNA)

References and advisories

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

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Details

Published: 2026-03-10
Last updated: 2026-03-10
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.52%

Probability of exploitation in 30 days

44.7%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Partial

Weaknesses (CWE)

CWE-639
Authorization Bypass Through User-Controlled Key
CWE-863
Incorrect Authorization