CVE-2026-18425 IDOR in Concrete CMS 9.0.0 through 9.5.2 dashboard sitemap reorder (SitemapUpdate::updateDisplayOrder) allows an authenticated sitemap user to reorder arbitrary pages

Concrete CMS 9 before 9.5.3 authorized the dashboard sitemap reorder action Concrete\Controller\Backend\Dashboard\SitemapUpdate using only the global accesssitemap task permission and did not check per-page edit permission before updating each page's display order. As a result, an authenticated...

CVE-2026-18425 IDOR in Concrete CMS 9.0.0 through 9.5.2 dashboard sitemap reorder (SitemapUpdate::updateDisplayOrder) allows an authenticated sitemap user to reorder arbitrary pages

Concrete CMS 9 before 9.5.3 authorized the dashboard sitemap reorder action Concrete\Controller\Backend\Dashboard\SitemapUpdate using only the global accesssitemap task permission and did not check per-page edit permission before updating each page's display order. As a result, an authenticated...