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CVE-2026-31915

WordPress Flatsome theme <= 3.19.6 - Broken Access Control vulnerability

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.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Uxthemes Wordpress
Products
Flatsome Wordpress
CVE-2023-40555

WordPress Flatsome Theme <= 3.17.5 is vulnerable to PHP Object Injection

Deserialization of Untrusted Data vulnerability in UX-themes Flatsome | Multi-Purpose Responsive WooCommerce Theme.This issue affects Flatsome | Multi-Purpose Responsive WooCommerce Theme: from n/a through 3.17.5.

CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed
Vendors
Uxthemes
Products
Flatsome
CVE-2026-28083

WordPress Flatsome theme <= 3.20.5 - Cross Site Scripting (XSS) vulnerability

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.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Uxthemes Wordpress
Products
Flatsome Wordpress
CVE-2025-8684

Flatsome <= 3.20.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

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.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Uxthemes Wordpress
Products
Flatsome Wordpress
CVE-2024-5346

Flatsome | Multi-Purpose Responsive WooCommerce Theme <= 3.18.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Multiple Shortcodes

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.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Uxthemes
Products
Flatsome
CVE-2023-28994

WordPress Flatsome Theme <= 3.16.8 is vulnerable to Cross Site Scripting (XSS)

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in UX-themes Flatsome plugin <= 3.16.8 versions.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Uxthemes
Products
Flatsome