CVE-2023-49777 CRITICAL

CVE-2023-49777: WordPress YITH WooCommerce Product Add-Ons Plugin <= 4.3.0 is vulnerable to PHP Object Injection

Vendor Yith
Product YITH WooCommerce Product Add-Ons
Weakness CWE-502 · Unsafe deserialization
Published December 31, 2023
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in YITH YITH WooCommerce Product Add-Ons.This issue affects YITH WooCommerce Product Add-Ons: from n/a through 4.3.0.

Explanation of Vulnerability in Simple Terms

02Summary

YITH WooCommerce Product Add-Ons versions up to 4.3.0 contain a deserialization vulnerability in how the plugin processes untrusted data. An authenticated administrator can craft malicious serialized input to execute arbitrary PHP code on the site. This affects the entire WordPress installation and any connected systems.

What an attacker can do

03Attacker Capabilities

Run arbitrary PHP code on the site with full access to the WordPress database and files.

Potential impact on your site

04Site Impact

A compromised admin account can lead to complete site takeover, data theft, malware injection, and loss of customer information.

Conditions required to exploit

05Prerequisites

Attacker must have administrator-level access to WordPress; no user interaction required.

Key dates

06Disclosure timeline

December 31, 2023 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

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