Flatsome <= 3.20.5 - Reflected Cross-Site Scripting
medium
The Flatsome theme for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 3.20.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick...
- CVSS:
- 6.1
- Affected:
- up to 3.20.5
- Fix:
- No patched version reported
- Disclosed:
- Jul 6, 2026
CVE-2026-57728 on NVD →
Flatsome <= 3.20.5 - Missing Authorization
medium
The Flatsome theme for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 3.20.5. This makes it possible for unauthenticated attackers to perform an unauthorized action.
- CVSS:
- 5.3
- Affected:
- up to 3.20.5
- Fix:
- No patched version reported
- Disclosed:
- Jul 6, 2026
CVE-2026-57729 on NVD →
Flatsome <= 3.20.5 - Missing Authorization
medium
The Flatsome theme for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 3.20.5. This makes it possible for authenticated attackers, with contributor-level access and above, to perform an unauthorized action.
- CVSS:
- 4.3
- Affected:
- up to 3.20.5
- Fix:
- No patched version reported
- Disclosed:
- Jul 1, 2026
CVE-2026-57731 on NVD →
Flatsome <= 3.20.5 - Missing Authorization
medium
The Flatsome theme for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 3.20.5. This makes it possible for authenticated attackers, with subscriber-level access and above, to perform an unauthorized action.
- CVSS:
- 4.3
- Affected:
- up to 3.20.5
- Fix:
- No patched version reported
- Disclosed:
- Jul 1, 2026
CVE-2026-57730 on NVD →
Flatsome [flatsome] <= 3.20.1 (unfixed)
unknown
[en] 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 <= 3.20.1.
- Affected:
- up to 3.20.1
- Fix:
- No patched version reported
- Disclosed:
- Feb 26, 2026
CVE-2026-28083 on NVD →
Flatsome <= 3.20.5 - Authenticated (Contributor+) Stored Cross-Site Scripting
medium
The Flatsome theme for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.20.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that wi...
- CVSS:
- 6.4
- Affected:
- up to 3.20.5
- Fixed in:
- 3.20.6
- Disclosed:
- Oct 6, 2025
CVE-2026-28083 on NVD →
Flatsome <= 3.20.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
medium
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...
- CVSS:
- 6.4
- Affected:
- up to 3.20.0
- Fixed in:
- 3.20.1
- Disclosed:
- Sep 4, 2025
CVE-2025-8684 on NVD →
Flatsome <= 3.19.6 - Missing Authorization
medium
The Flatsome theme for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 3.19.6. This makes it possible for unauthenticated attackers to perform an unauthorized action.
- CVSS:
- 5.3
- Affected:
- up to 3.19.6
- Fixed in:
- 3.19.7
- Disclosed:
- Oct 24, 2024
CVE-2026-31915 on NVD →
Flatsome [flatsome] < 3.19.0
unknown
[en] 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. Thi...
- Affected:
- up to 3.19.0
- Fixed in:
- 3.19.0
- Disclosed:
- Jun 22, 2024
CVE-2024-5346 on NVD →
Flatsome | Multi-Purpose Responsive WooCommerce Theme <= 3.18.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Multiple Shortcodes
medium
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 mak...
- CVSS:
- 6.4
- Affected:
- up to 3.18.7
- Fixed in:
- 3.19.0
- Disclosed:
- Jun 21, 2024
CVE-2024-5346 on NVD →
Flatsome [flatsome] < 3.19.0
unknown
[en] 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...
- Affected:
- up to 3.19.0
- Fixed in:
- 3.19.0
- Disclosed:
- Jun 20, 2024
CVE-2024-5156 on NVD →
Flatsome <= 3.18.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
medium
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 acce...
- CVSS:
- 6.4
- Affected:
- up to 3.18.7
- Fixed in:
- 3.19.0
- Disclosed:
- Jun 19, 2024
CVE-2024-5156 on NVD →
Flatsome [flatsome] < 3.17.6
unknown
[en] 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.
- Affected:
- up to 3.17.6
- Fixed in:
- 3.17.6
- Disclosed:
- Dec 20, 2023
CVE-2023-40555 on NVD →
Flatsome <= 3.17.5 - Unauthenticated PHP Object Injection
critical
The Flatsome theme for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 3.17.5 via deserialization of untrusted input. This allows unauthenticated attackers to inject a PHP Object. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow...
- CVSS:
- 9.8
- Affected:
- up to 3.17.5
- Fixed in:
- 3.17.6
- Disclosed:
- Sep 5, 2023
CVE-2023-40555 on NVD →
Flatsome [flatsome] < 3.17.0
unknown
[en] Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in UX-themes Flatsome plugin <= 3.16.8 versions.
- Affected:
- up to 3.17.0
- Fixed in:
- 3.17.0
- Disclosed:
- Aug 23, 2023
CVE-2023-28994 on NVD →
Flatsome <= 3.16.8 - Reflected Cross-Site Scripting in UX Builder
medium
The Flatsome theme for WordPress is vulnerable to Reflected Cross-Site Scripting in the UX Builder in versions up to, and including, 3.16.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can s...
- CVSS:
- 6.1
- Affected:
- up to 3.16.8
- Fixed in:
- 3.17.0
- Disclosed:
- Apr 25, 2023
CVE-2023-28994 on NVD →
Flatsome [flatsome] < 3.20.1
unknown
- Affected:
- up to 3.20.1
- Fixed in:
- 3.20.1
CVE-2025-8684 on NVD →
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