Yes. yiisoft/yii2-dev (Packagist): upgrade to 2.0.12.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2018-7269?
Check whether you run yiisoft/yii2-dev (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
yiisoft/yii2-dev (Packagist): upgrade to 2.0.12.1 or later