CVE-2026-32106 json
StudioCMS: REST API Missing Rank Check Allows Admin to Create Peer Admin Accounts
published 2026-03-11 7 mo ago modified 2026-06-17 4 mo ago also GHSA-wj56-g96r-673q , EUVD-2026-11375
- cvss
- 4.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
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.
Patch / fix
- npm studiocms 0.4.3
- studiocms studiocms 0.4.3
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/withstudiocms/studiocms/security/advisories/GHSA-wj56-g96r-673q referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
| NVD | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | studiocms | <0.4.3 |
0.4.3 |
Affected products
- withstudiocms studiocms
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
References
-
github.com
/withstudiocms/studiocms/security/advisories/GHSA-wj56-g96r-673q
web, exploit, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-32106
advisory
-
github.com
/withstudiocms/studiocms
package
Sources
- CVE List CVE-2026-32106
- GitHub Advisory GHSA-wj56-g96r-673q
- NVD CVE-2026-32106
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