The Error Log Viewer WordPress plugin through 1.1.1 does not validate the path of the log file to clear, allowing high privilege users to clear arbitrary files on the web server, including those outside of the blog folder
The Error Log Viewer WordPress plugin before 1.1.2 does not perform nonce check when deleting a log file and does not have path traversal prevention, which could allow attackers to make a logged in admin delete arbitrary text files on the web server.
The Visitors WordPress plugin through 0.3 is affected by an Unauthenticated Stored Cross-Site Scripting (XSS) vulnerability. The plugin would display the user's user agent string without validation or encoding within the WordPress admin panel.
The BestWebSoft Htaccess plugin through 1.8.1 for WordPress allows wp-admin/admin.php?page=htaccess.php&action=htaccess_editor CSRF. The flag htccss_nonce_name passes the nonce to WordPress but the plugin does not validate it correctly, resulting in a wrong implementation of anti-CSRF protection. In this way, an attacker is able to direct the victim to a malicious web page that modifies the .htaccess file, and takes control of the website.