CVE-2026-81902 Concrete CMS 9.0.0 to 9.5.2 is vulnerable to CSRF on Orphan Block Cleanup

Concrete CMS 9 through 9.5.2 did not validate a CSRF token in the orphaned block removal panel action removeOrphanedBlocks. A remote attacker could craft a request that, when loaded by an authenticated user holding edit permission on the target page, deleted every block on that page's current...