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TI-2026-24644 Aliases CVE-2026-32106GHSA-wj56-g96r-673q

StudioCMS: REST API Missing Rank Check Allows Admin to Create Peer Admin Accounts

Priority HIGH 65CWE-269Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-269.

Summary

StudioCMS is a server-side-rendered, Astro native, headless content management system. Prior to 0.4.3, the REST API createUser endpoint uses string-based rank checks that only block creating owner accounts, while the Dashboard API uses indexOf-based rank comparison that prevents creating users at or above your own rank. This inconsistency allows an admin to create additional admin accounts via the REST API, enabling privilege proliferation and persistence. This vulnerability is fixed in 0.4.3.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00338 27th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed studiocms (withstudiocms): 0.4.3studiocms (npm): 0.4.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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

VendorProductAffected versionsFixed inStatusSource
withstudiocmsstudiocmsbefore 0.4.30.4.3Patch availableCNA
—studiocms (npm)before 0.4.30.4.3Patch availableGHSA-wj56-g96r-673q
  • studiocms Vendorwithstudiocms Affected before 0.4.3 Fixed in 0.4.3 Patch available CNA
  • studiocms (npm) Vendor— Affected before 0.4.3 Fixed in 0.4.3 Patch available GHSA-wj56-g96r-673q

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:studiocms:studiocms:*:*:*:*:*:*:*:*before 0.4.3Vulnerablewithstudiocms
  • cpe:2.3:a:studiocms:studiocms:*:*:*:*:*:*:*:* Versions before 0.4.3 Vulnerable ·withstudiocms

Remediation

  • Fix · CNA studiocms (withstudiocms) Fixed in 0.4.3
  • Fix · GHSA-wj56-g96r-673q studiocms (npm) Fixed in 0.4.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-32106
  2. 2026-10-03 Alias added: GHSA-wj56-g96r-673q

References

Exploit 1

Advisory 1

Other 1

  • 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-2026-24641 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
  • TI-2026-25147 StudioCMS REST getUsers Exposes Owner Account Records to Admin Tokens CVSS 3.1LOW 2.7
See all 7 →

Sources

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