ux-themes vulnerabilities and threats

The Flatsome WordPress theme up to version 3.20.12 contains a stored cross-site scripting (XSS) vulnerability. Authenticated users with contributor-level access or higher can inject malicious scripts via certain HTML attributes ('data-text-sec', 'data-title', and 'title') in Custom HTML blocks. The vulnerability arises because the theme does not properly sanitize or escape these attributes, and WordPress's wp_kses_post function permits data-* attributes globally, allowing the malicious payload to persist and execute in users' browsers when they visit affected pages.

Missing Authorization vulnerability in UX-themes Flatsome flatsome allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Flatsome: from n/a through <= 3.20.5.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in UX-themes Flatsome flatsome allows Reflected XSS.This issue affects Flatsome: from n/a through <= 3.20.5.

Contributor Broken Access Control in Flatsome <= 3.20.5 versions.

Subscriber Broken Access Control in Flatsome <= 3.20.5 versions.

Missing Authorization vulnerability in UX-themes Flatsome flatsome allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Flatsome: from n/a through <= 3.19.6.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in UX-themes Flatsome flatsome allows Stored XSS.This issue affects Flatsome: from n/a through <= 3.20.5.

The Flatsome Theme for WordPress is vulnerable to Stored Cross-Site Scripting via the theme's shortcodes in all versions up to, and including, 3.20.0 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 Flatsome theme for WordPress is vulnerable to Stored Cross-Site Scripting via the UX Countdown, Video Button, UX Video, UX Slider, UX Sidebar, and UX Payment Icons shortcodes in all versions up to, and including, 3.18.7 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 Flatsome theme for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in all versions up to, and including, 3.18.7 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.