Language: TypeScript
Label: safe
CWE: CWE-79 \u2014 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Code:
                    handler: function (grid, rowIndex) {
                        let data = grid.getStore().getAt(rowIndex);
                        pimcore.helpers.deleteConfirm(t('translation').toLowerCase(), Ext.util.Format.htmlEncode(data.data.key), function () {
                            grid.getStore().removeAt(rowIndex);
                        }.bind(this));
                    }.bind(this)