StudioCMS: IDOR — Admin-to-Owner Account Takeover via Password Reset Link Generation
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- 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-639.
Summary
StudioCMS is a server-side-rendered, Astro native, headless content management system. Prior to 0.4.3, the POST /studiocms_api/dashboard/create-reset-link endpoint allows any authenticated user with admin privileges to generate a password reset token for any other user, including the owner account. The handler verifies that the caller is an admin but does not enforce role hierarchy, nor does it validate that the target userId matches the caller's identity. Combined with the POST /studiocms_api/dashboard/reset-password endpoint, this allows a complete account takeover of the highest-privileged account in the system. This vulnerability is fixed in 0.4.3.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| withstudiocms | studiocms | before 0.4.3 | 0.4.3 | Patch available | CNA |
| — | studiocms (npm) | before 0.4.3 | 0.4.3 | Patch available | GHSA-h7vr-cg25-jf8c |
- 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-h7vr-cg25-jf8c
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:studiocms:studiocms:*:*:*:*:*:*:*:* | before 0.4.3 | Vulnerable | withstudiocms |
- 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-h7vr-cg25-jf8c studiocms (npm) Fixed in 0.4.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-32103
- 2026-10-03 Alias added: GHSA-h7vr-cg25-jf8c
References
More withstudiocms Studiocms vulnerabilities
- 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-2026-19452 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
Sources
- CVE-2026-32103 · CVE Program
- CVE-2026-32103 · NVD
- FIRST EPSS
- GHSA-h7vr-cg25-jf8c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences