GHSA-7P36-FQ2R-4H7R Pimcore CMS Twig Sandbox Bypass via SecurityPolicy checkMethodAllowed

Pimcore CMS/DXP version 12.3.8 contains a sandbox bypass vulnerability that allows authenticated administrative attackers to execute arbitrary methods on PHP objects by exploiting empty checkMethodAllowed and checkPropertyAllowed implementations in the custom Twig SecurityPolicy. Attackers can...