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OpenAdvisories
Medium · 4.3 CVE-2026-112952 EUVD-2026-105102GHSA-f66c-mpj2-3r8h

ApostropheCMS: POST /api/v1/@apostrophecms/doc/slugTaken discloses existence of private/admin-only content to any authenticated user

Published Oct 20, 2026 · Updated Oct 21, 2026 · Assigned by GitHub_M

Description

ApostropheCMS is an open-source Node.js content management system. Prior to 4.34.0, 'POST /api/v1/@apostrophecms/doc/slugTaken' with body { "slug": "target-slug" } returns a boolean indicating whether a slug is in use across all document types and visibility levels, with no permission or type filter. Any logged-in user (including editors) can enumerate the slug space of private pages, drafts, and archived content. This issue is fixed in version 4.34.0.

Affected products

VendorProductAffectedFixed
apostrophecms apostrophe < 4.34.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm apostrophe < 4.34.0 4.34.0 GHSA-f66c-mpj2-3r8h

References