What is the CVSS score of EUVD-2026-31098?

EUVD-2026-31098 has a CVSS 3.1 base score of 7.6 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L. EPSS exploitation probability: 0.0%.

Which versions of YITH WooCommerce Product Add-Ons are affected by EUVD-2026-31098?

YITH WooCommerce Product Add-Ons plugin (through version 4.29.0) contains a SQL injection vulnerability accessible to high-privileged authenticated users, enabling potential unauthorized access to…

How to fix or mitigate EUVD-2026-31098?

24 hours: Inventory all WordPress installations using YITH WooCommerce Product Add-Ons version 4.29.0 or earlier; audit admin access logs for suspicious activity and verify all administrative accounts are legitimate. 7 days: Enforce multi-factor authentication on all administrator accounts; implement database query logging to detect SQL injection patterns; restrict admin panel access by IP allowlist. 30 days: Monitor Patchstack and vendor advisories for patch availability; plan and execute immediate upgrade to patched version upon release.

YITH WooCommerce Product Add-Ons EUVD-2026-31098

| CVE-2026-42383 HIGH

SQL Injection (CWE-89)

2026-05-20 Patchstack

GHSA-g9v3-4rrx-2w2w

WordPress SQLi Yith Woocommerce Product Add Ons Wordpress Plugin Yith

7.6

CVSS 3.1 · Vendor: Patchstack

Severity by source

Vendor (Patchstack) PRIMARY

7.6 HIGH

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

Primary rating from Vendor (Patchstack) · only source for this CVE.

CVSS VectorVendor: Patchstack

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

Low

Lifecycle Timeline

Analysis Generated

May 20, 2026 - 13:32 vuln.today

DescriptionCVE.org

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in YITH YITH WooCommerce Product Add-Ons allows Blind SQL Injection.

This issue affects YITH WooCommerce Product Add-Ons: from n/a through 4.29.0.

AnalysisAI

Blind SQL injection in YITH WooCommerce Product Add-Ons (WordPress plugin) through version 4.29.0 allows high-privileged authenticated users to inject malicious SQL into database queries, leading to confidentiality compromise and limited availability impact across a changed security scope. The flaw was disclosed by Patchstack and carries a CVSS 3.1 score of 7.6; no public exploit identified at time of analysis and the issue is not listed in CISA KEV.

Technical ContextAI

The vulnerability is rooted in CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), meaning user-supplied input is concatenated into SQL queries without proper sanitization or parameterization. The affected component is the YITH WooCommerce Product Add-Ons plugin (CPE cpe:2.3:a:yith:yith_woocommerce_product_add-ons), an extension that enables WooCommerce store owners to add custom options, fields, and add-on products to WooCommerce listings on WordPress. Because exploitation is blind, the attacker does not receive direct SQL output and must infer query results from boolean/time-based response differences - typically by manipulating an injectable parameter within an authenticated plugin endpoint that passes input into a WPDB query without using $wpdb->prepare() or proper escaping.

RemediationAI

Patch available per vendor advisory; the Patchstack record indicates the issue affects versions up to 4.29.0, so administrators should upgrade YITH WooCommerce Product Add-Ons to the next vendor-released version above 4.29.0 as published on the plugin's WordPress.org page and confirm the installed build via Plugins → Installed Plugins. Until the upgrade can be applied, restrict high-privileged WordPress accounts (administrator, shop manager, and any custom roles granted plugin-management capabilities) to trusted personnel, enforce MFA on those accounts, and rotate any credentials those users could have exposed. As a compensating control, deploy a WordPress-aware WAF (Patchstack, Wordfence, or equivalent virtual patching) to block SQLi payloads against plugin endpoints - the trade-off is that overly aggressive rules can break legitimate admin operations that legitimately include SQL-like syntax. Audit database read access logs for unusual SELECTs originating from web-app user accounts and review the advisory at https://patchstack.com/database/wordpress/plugin/yith-woocommerce-product-add-ons/vulnerability/wordpress-yith-woocommerce-product-add-ons-plugin-4-29-0-sql-injection-vulnerability for any vendor-recommended workaround.