CVE-2023-40555 HIGH

CVE-2023-40555: WordPress Flatsome Theme <= 3.17.5 is vulnerable to PHP Object Injection

Vendor Ux-Themes
Product Flatsome | Multi-Purpose Responsive WooCommerce Theme
Weakness CWE-502 · Unsafe deserialization
Published December 20, 2023
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

8.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 20, 2023 CVE published
April 28, 2026 Record updated