The Simple Share Buttons Adder WordPress plugin before 8.5.1 does not sanitise and escape some of its settings, which could allow high privilege users such as editors to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed

The Simple Share Buttons Adder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 8.4.11 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Cross-Site Request Forgery (CSRF) vulnerability in Simple Share Buttons Simple Share Buttons Adder plugin <= 8.4.7 versions.

The simple-share-buttons-adder plugin before 6.0.0 for WordPress has XSS.

Multiple cross-site request forgery (CSRF) vulnerabilities in the Simple Share Buttons Adder plugin before 4.5 for WordPress allow remote attackers to hijack the authentication of administrators for requests that conduct cross-site scripting (XSS) attacks via the (1) ssba_share_text parameter in a save action to wp-admin/options-general.php, which is not properly handled in the homepage, and unspecified vectors related to (2) Pages, (3) Posts, (4) Category/Archive pages or (5) post Excerpts.