CVE-2026-66711 HIGH

CVE-2026-66711: WordPress WooCommerce Multilingual & Multicurrency plugin <= 5.5.6 - Cross Site Scripting (XSS) vulnerability

Vendor Amir Helzer
Product WooCommerce Multilingual & Multicurrency
Weakness CWE-79 · XSS
Published August 6, 2026
Last update August 6, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Subscriber Cross Site Scripting (XSS) in WooCommerce Multilingual & Multicurrency <= 5.5.6 versions.

Explanation of Vulnerability in Simple Terms

02Summary

WooCommerce Multilingual & Multicurrency versions up to 5.5.6 contain a cross-site scripting (XSS) vulnerability. An attacker can inject malicious scripts that execute in visitors' browsers when they interact with affected pages. The vulnerability requires user interaction and can affect multiple users across the site. Update to a version newer than 5.5.6 to remediate.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in visitors' browsers, stealing session tokens or redirecting users.

Potential impact on your site

04Site Impact

Visitors' browsers can be compromised; session hijacking and credential theft are possible.

Conditions required to exploit

05Prerequisites

Visitor must click a malicious link or visit an attacker-controlled page; no authentication required.

Key dates

06Disclosure timeline

August 6, 2026 CVE published
August 6, 2026 Record updated

Related vulnerabilities

08Related CVE

CVE-2026-5108 Super Progressive Web Apps <= 2.2.43 - Authenticated (Administrator+) Stored Cross-Site Scripting via Offline Message Setting CVE-2026-17505 TranslatePress <= 3.2.5 - Reflected Cross-Site Scripting CVE-2026-17571 Fluent Forms <= 6.2.8 - Reflected Cross-Site Scripting via 'param' CVE-2026-18344 Responsive Thumbnail Slider < 1.1.53 - Reflected Cross-Site Scripting via 'id' Parameter CVE-2026-61961 WordPress EmbedPress plugin <= 4.5.6 - Cross Site Scripting (XSS) vulnerability