GHSA-9mrq-cjgh-32g2 smartbanner.js rel noopener vulnerability

• npm smartbanner.js: < 1.14.1 → fixed in 1.14.1

rel noopener vulnerability Impact Clicking on smartbanner _View_ link and navigating to 3rd party page leaves `window.opener` exposed. It may allow hostile 3rd parties to abuse `window.opener`, e.g. by redirection or injection on the original page with smartbanner. Patches `rel="noopener"` is automatically populated to links as of `v1.14.1` which is a recommended upgrade to resolve the vulnerability. Workarounds If you can not upgrade to `v1.14.1`: 1. Ensure _View_ link is only taking users to App Store or Google Play Store where security is guarded by respective app store security teams 2. If _View_ link is going to a 3rd party page, limit smartbanner.js to be used on iOS that decreases the scope of the vulnerability since as of Safari 12.1, `rel="noopener"` is imposed on all `target="_blank"` links. Following combination of smartbanner meta tags can be used to achieve the above: ```html ``` References • About rel=noopener • Safari 12.1 Release Notes For more information If you have any questions or comments about this advisory: • Open an issue in smartbanner.js