Fedora 21: FEDORA-2015-13423 Moderate: Php-Twig Remote Code Execution

The flexible, fast, and secure template engine for PHP.

* Fast: Twig compiles templates down to plain optimized PHP code. The

overhead compared to regular PHP code was reduced to the very minimum.

* Secure: Twig has a sandbox mode to evaluate untrusted template code. This

allows Twig to be used as a template language for applications where users may modify the template design.

* Flexible: Twig is powered by a flexible lexer and parser. This allows the

developer to define its own custom tags and filters, and create its own

DSL.

## 1.20.0 (2015-08-12) * forbid access to the Twig environment from templates and internal parts of Twig_Template * fixed limited RCEs when in sandbox mode * deprecated Twig_Template::getEnvironment() * deprecated the _self variable for usage outside of the from and import tags * added Twig_BaseNodeVisitor to ease the compatibility of node visitors between 1.x and 2.x ## 1.19.0 (2015-07-31) * fixed wrong error message when including an undefined template in a child template * added support for variadic filters, functions, and tests * added support for extra positional arguments in macros * added ignore_missing flag to the source function * fixed batch filter with zero items * deprecated Twig_Environment::clearTemplateCache() * fixed sandbox disabling when using the include function