High severity7.1NVD Advisory· Published Nov 10, 2026
CVE-2026-125398
CVE-2026-125398
Description
Instatic before 0.0.21 contains an authorization bypass vulnerability in handleRowAuthor that allows authenticated users to skip table-level access checks by loading rows with getDataRow() instead of loadRowForAccess(). Attackers holding content.edit.any but lacking data.system.tables.read can send PATCH requests to /admin/api/cms/data/rows/:id/author to read system-table rows and reassign their authors.
Affected products
1Patches
Vulnerability mechanics
References
5- github.com/CoreBunch/Instatic/blob/v0.0.20/server/handlers/cms/data/rows.tsnvd
- github.com/CoreBunch/Instatic/commit/ff1e51eb59c860864fa24e8c3e2716b56314f3adnvd
- github.com/CoreBunch/Instatic/releases/tag/v0.0.21nvd
- github.com/CoreBunch/Instatic/security/advisories/GHSA-m425-wmrc-4v4vnvd
- www.vulncheck.com/advisories/instatic-before-0.0.21-authorization-bypass-via-row-author-reassignment-endpointnvd
News mentions
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