Admin-to-owner takeover via unrestricted reset token generation
Published Mar 11, 2026 · Updated Mar 11, 2026
Authorization bypass in withStudioCMS StudioCMS before 0.4.3 allows remote authenticated users with admin access to take over the owner account. The create-reset-link handler accepts a caller-supplied userId, skips identity and role-hierarchy checks, and returns the target's reset token. An admin can pass that token to reset-password, replace the owner's password, and gain full instance control without owner interaction.
Summary
What happened
Authorization bypass in withStudioCMS StudioCMS before 0.4.3 allows remote authenticated users with admin access to take over the owner account. The create-reset-link handler accepts a caller-supplied userId, skips identity and role-hierarchy checks, and returns the target's reset token. An admin can pass that token to reset-password, replace the owner's password, and gain full instance control without owner interaction.
The record
- CVE
- CVE-2026-32103
- Published
- Mar 11, 2026
- Updated
- Mar 11, 2026
- Vendor
- withStudioCMS
- Product
- StudioCMS
- Classifications
- CWE-639, CWE-640, T1098
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Mar 11, 2026CVE publishedPublication date reported by the CVE source.
- Mar 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 0.4.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Vendor advisory HTTP proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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