The Becustom plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.0.5.2. This is due to missing nonce validation when saving the plugin's settings. This makes it possible for unauthenticated attackers to update the plugin's settings like betheme_url_slug, replaced_theme_author, and betheme_label to name a few, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The Betheme theme for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 26.5.1.4 via deserialization of untrusted input supplied via the import, mfn-items-import-page, and mfn-items-import parameters passed through the mfn_builder_import, mfn_builder_import_page, importdata, importsinglepage, and importfromclipboard functions. This makes it possible for authenticated attackers, with subscriber level permissions and above to inject a PHP Object. The additional presence of a POP chain would make it possible for attackers to execute code, retrieve sensitive data, delete files, etc..

Auth. (subscriber+) PHP Object Injection vulnerability in Betheme theme <= 26.5.1.4 on WordPress.

Missing Authorization vulnerability in Muffingroup Betheme.This issue affects Betheme: from n/a through 26.6.1.

Missing Authorization vulnerability in Muffingroup Betheme.This issue affects Betheme: from n/a through 26.6.1.

Missing Authorization vulnerability in Muffingroup Betheme.This issue affects Betheme: from n/a through 26.6.1.

Broken Access Control in Betheme theme <= 26.6.1 on WordPress.

Missing Authorization vulnerability in Muffingroup Betheme.This issue affects Betheme: from n/a through 26.6.1.

Auth. (subscriber+) Stored Cross-Site Scripting (XSS) in Muffingroup Betheme theme <= 26.6.1 on WordPress.

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Muffingroup Betheme theme <= 26.7.5 versions.

Missing Authorization vulnerability in Muffingroup Betheme.This issue affects Betheme: from n/a through 27.1.1.

Missing Authorization vulnerability in Muffin Group Betheme.This issue affects Betheme: from n/a through 27.1.1.

The Betheme plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's custom JS functionality in all versions up to, and including, 27.6.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Betheme theme for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Button shortcode and Custom CSS field in all versions up to, and including, 28.0.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.