TI-2026-23770 Aliases CVE-2026-30945 GHSA-8rgj-vrfr-6hqr

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

LOW 32CWE-639Published 2026-03-10 · Updated 2026-03-10

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · Low · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00525 44th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed studiocms (withstudiocms): 0.4.0studiocms (npm): 0.4.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
withstudiocms	studiocms	before 0.4.0	0.4.0	Patch available	CNA
—	studiocms (npm)	before 0.4.0	0.4.0	Patch available	GHSA-8rgj-vrfr-6hqr

studiocms Vendorwithstudiocms Affected before 0.4.0 Fixed in 0.4.0 Patch available CNA
studiocms (npm) Vendor— Affected before 0.4.0 Fixed in 0.4.0 Patch available GHSA-8rgj-vrfr-6hqr

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:studiocms:studiocms::::::::	before 0.4.0	Vulnerable	withstudiocms

cpe:2.3:a:studiocms:studiocms:*:*:*:*:*:*:*:* Versions before 0.4.0 Vulnerable ·withstudiocms

Remediation

Fix · CNA studiocms (withstudiocms) Fixed in 0.4.0
Fix · GHSA-8rgj-vrfr-6hqr studiocms (npm) Fixed in 0.4.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-30945
2026-10-03 Alias added: GHSA-8rgj-vrfr-6hqr

References

Other 2

TI-2026-23769 StudioCMS Affected by Privilege Escalation via Insecure API Token Generation CVSS 3.1HIGH 8.8
TI-2026-24639 StudioCMS S3 Storage Manager Authorization Bypass via Missing `await` on Async Auth Check CVSS 3.1HIGH 7.6
TI-2026-24644 StudioCMS: REST API Missing Rank Check Allows Admin to Create Peer Admin Accounts CVSS 3.1HIGH 7.2
TI-2026-24641 StudioCMS: IDOR — Admin-to-Owner Account Takeover via Password Reset Link Generation CVSS 3.1HIGH 7.2
TI-2026-19452 StudioCMS has an Authorization Bypass Through User-Controlled Key CVSS 3.1MEDIUM 6.5
TI-2026-24642 StudioCMS: IDOR in User Notification Preferences Allows Any Authenticated User to Modify Any User's Settings CVSS 3.1MEDIUM 5.4

See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences