Remote code execution in Flex QR Code Generator plugin for WordPress up to 1.2.6 allows unauthenticated attackers to upload arbitrary files via the update_qr_code() function, which lacks file type validation. This enables server compromise through malicious file placement, with a public proof-of-concept available, though no active exploitation has been observed. The vulnerability affects all installations of the plugin that expose the vulnerable AJAX endpoint.
The 10Web Booster - Website speed optimization, Cache & Page Speed optimizer plugin for WordPress is vulnerable to arbitrary folder deletion due to insufficient file path validation in the get_cache_dir_for_page_from_url() function in all versions up to, and including, 2.32.7. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary folders on the server, which can easily lead to a loss of data or a denial of service condition.