Budibase is an open-source low-code platform. Prior to 3.38.1, the POST /api/global/users/onboard endpoint is protected by workspaceBuilderOrAdmin middleware, allowing any user with builder permissions to access it. When SMTP email is not configured (the default for self-hosted Budibase instances), this endpoint bypasses the admin-restricted invite flow and directly creates users via bulkCreate, accepting arbitrary admin and builder role assignments from the request body. A builder-level user can create a new global admin account and receive the generated password in the response, achieving full privilege escalation. This vulnerability is fixed in 3.38.1.
Metrics
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History
Thu, 28 May 2026 02:30:00 +0000
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Wed, 27 May 2026 19:30:00 +0000
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Wed, 27 May 2026 17:45:00 +0000
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| Description | Budibase is an open-source low-code platform. Prior to 3.38.1, the POST /api/global/users/onboard endpoint is protected by workspaceBuilderOrAdmin middleware, allowing any user with builder permissions to access it. When SMTP email is not configured (the default for self-hosted Budibase instances), this endpoint bypasses the admin-restricted invite flow and directly creates users via bulkCreate, accepting arbitrary admin and builder role assignments from the request body. A builder-level user can create a new global admin account and receive the generated password in the response, achieving full privilege escalation. This vulnerability is fixed in 3.38.1. | |
| Title | Budibase: Builder-to-Admin Privilege Escalation via onboardUsers Endpoint Without SMTP Configuration | |
| Weaknesses | CWE-269 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-05-27T17:09:43.383Z
Updated: 2026-05-27T18:34:27.255Z
Reserved: 2026-05-13T05:51:48.666Z
Link: CVE-2026-45716
Updated: 2026-05-27T18:33:59.295Z
Status : Deferred
Published: 2026-05-27T18:16:25.570
Modified: 2026-05-27T20:16:39.200
Link: CVE-2026-45716
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