CVE-2026-84432 Concrete CMS 9 through 9.5.2 is vulnerable to CSRFin the Boards custom slot dialog controller

Concrete CMS 9 through 9.5.2 did not validate an anti-CSRF token in the Boards custom slot dialog controller concrete/controllers/dialog/board/customslot.php saveTemplate action. The action created a boardslotproxy Block and dispatched an AddCustomSlotToBoardCommand against a board instance while...

CVE-2026-84432

Concrete CMS versions 9 through 9.5.2 are affected by a CSRF vulnerability in the Boards custom slot dialog controller (custom_slot.php), specifically the saveTemplate() action. The action did not validate an anti-CSRF token, gating only on the canEditBoardContents() permission. A crafted cross-s...

PT-2026-89565

Concrete CMS 9 through 9.5.2 did not validate an anti-CSRF token in the Boards custom slot dialog controller concrete/controllers/dialog/board/custom slot.php saveTemplate action. The action created a board slot proxy Block and dispatched an AddCustomSlotToBoardCommand against a board instance...