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[ CVE-2026-113655 · Published 20 Oct 2026 ]

ApostropheCMS: Same-parent page reorder in @apostrophecms/page move() re-ranks a restricted parent's children without create authorization

CVSS 4.3 EPSS <1%Fix available

[ Why it matters ]Priority signals

  • Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official description

ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, an authenticated editor with legitimate edit rights on a pre-existing ordinary page nested under a restricted parent can use the same-parent page move operation to change sibling ranks without create authorization on that parent. The non-default nesting must already exist, and the bypass is limited to sibling ordering rather than arbitrary content modification, confidentiality loss, or creation of the restricted nesting. This issue is fixed in version 4.33.0.

[ Fixes ]Fixes and patches

  • apostrophe 4.33.0Fixed version · GitHub Advisories · npm package apostrophe: upgrade to 4.33.0 or later (affected < 4.33.0)

[ Packages ]Affected open-source packages

[ References ]References