CVE-2026-104398 CRITICAL

CVE-2026-104398: WordPress AFFI – Affiliate Marketing for WooCommerce plugin <= 1.0.10 - PHP Object Injection vulnerability

Vendor Villatheme
Product AFFI – Affiliate Marketing for WooCommerce
Weakness CWE-502 · Unsafe deserialization
Published October 10, 2026
Last update October 10, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in VillaTheme AFFI – Affiliate Marketing for WooCommerce affi-affiliate-marketing-for-woo allows Object Injection.This issue affects AFFI – Affiliate Marketing for WooCommerce: from n/a through 1.0.10.

Key dates

02Disclosure timeline

October 10, 2026 CVE published

Related vulnerabilities

04Related CVE

CVE-2026-66620 WordPress OptionTree plugin <= 2.7.3 - PHP Object Injection vulnerability CVE-2026-66650 WordPress FreightCo theme <= 1.1.15 - PHP Object Injection vulnerability CVE-2026-27060 WordPress ARMember Premium plugin <= 7.0 - PHP Object Injection vulnerability CVE-2026-0551 PPWP – Password Protect Pages <= 1.9.18 - Authenticated (Contributor+) PHP Object Injection via post_protection_roles CVE-2026-78286 WordPress Geo Controller plugin <= 8.9.8 - PHP Object Injection vulnerability