CVE-2026-97864 GibbonEdu Gibbon Unit Planner units_add_blockAjax.php makeBlock missing authentication

A vulnerability has been found in GibbonEdu Gibbon up to 30.0.01. The affected element is the function makeBlock of the file modules/Planner/unitsaddblockAjax.php of the component Unit Planner. The manipulation of the argument gibbonUnitBlockID/mode leads to missing authentication. The attack is...