| Título | BookstackApp BookStack v25.12.9 Improper Access Controls |
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| Descripción | I reported a vulnerability in bookstack (https://github.com/BookStackApp/BookStack) which was promptly patched in https://github.com/BookStackApp/BookStack/releases/tag/v26.03.1
I am requesting a CVE.
Description:
The finding is confirmed by direct source code inspection. In `ExportFormatter.php`, the `chapterToMarkdown()` method at line 317 iterates over `$chapter->pages` — the raw Eloquent relationship that returns all pages associated with the chapter **with no permission scoping whatsoever**.
This is in direct contrast to every other chapter export method in the same class:
The `getVisiblePages()` method on the `Chapter` model applies `->scopes('visible')` which triggers permission filtering through the `PermissionApplicator`, and also orders by draft status and priority. The raw `$chapter->pages` relationship bypasses all of this, exposing every page in the chapter regardless of the current user's permissions. |
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| Fuente | ⚠️ https://github.com/Ghufran2/CVE-Bookstack/blob/main/Permission%20Bypass%20in%20Markdown%20Chapter%20Export |
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| Usuario | Ghufran Khan (UID 95493) |
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| Sumisión | 2026-03-17 14:08 (hace 19 días) |
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| Moderación | 2026-04-03 15:11 (17 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 355091 [BookStackApp BookStack hasta 26.03 Chapter Export ExportFormatter.php chapterToMarkdown pages escalada de privilegios] |
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| Puntos | 20 |
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