The All-In-One Security (AIOS) WordPress plugin before 5.1.5 does not escape the content of log files before outputting it to the plugin admin page, allowing an authorized user (admin+) to plant bogus log files containing malicious JavaScript code that will be executed in the context of any administrator visiting this page.

The All-In-One Security (AIOS) WordPress plugin before 5.1.5 does not limit what log files to display in it's settings pages, allowing an authorized user (admin+) to view the contents of arbitrary files and list directories anywhere on the server (to which the web server has access). The plugin only displays the last 50 lines of the file.

The All-In-One Security (AIOS) WordPress plugin before 5.1.3 leaked settings of the plugin publicly, including the used email address.

The All-In-One Security (AIOS) WordPress plugin before 5.0.8 is susceptible to IP Spoofing attacks, which can lead to bypassed security features (like IP blocks, rate limiting, brute force protection, and more).