The blog-post creation functionality in the Amasty Blog Pro 2.10.3 plugin for Magento 2 allows injection of JavaScript code in the short_content and full_content fields, leading to XSS attacks against admin panel users via posts/preview or posts/save.
The Preview functionality in the Amasty Blog Pro 2.10.3 plugin for Magento 2 uses eval unsafely. This allows attackers to perform Cross-site Scripting attacks on admin panel users by manipulating the generated preview application response.