Kimai's Twig function config() leaks server-wide secrets (LDAP bind password, SAML SP private key) via invoice/export templates

Summary Kimai's Twig sandbox StrictPolicy, used for admin-uploaded invoice and export templates allow-lists the config Twig function with no key filtering. configname delegates to App\Configuration\SystemConfiguration::find$name, which returns arbitrary entries from the flattened kimai.config...