Welcart e-Commerce <= 2.11.33 - Authenticated (Author+) Stored Cross-Site Scripting

6.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-16066
CVSS 6.4 (Medium)
Publicly Published August 10, 2026
Last Updated August 15, 2026
Researcher Yaswanth Reddy Sunkara

Description

The Welcart e-Commerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.11.33 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

Share

Vulnerability Details for Welcart e-Commerce

Software Type Plugin
Software Slug usc-e-shop (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.11.34, or a newer patched version
Affected Version
  • <= 2.11.33
Patched Version
  • 2.11.34

Recent vulnerabilities in Welcart e-Commerce

# Title CVE ID CVSS Researchers Date
1 Welcart e-Commerce <= 2.12.1 - Unauthenticated Arbitrary File Deletion via PHP Object Injection via 'reserve' Checkout Parameter and 'option' EDY Callback CVE-2026-19887 8.8 daroo September 4, 2026
2 Welcart e-Commerce <= 2.12.1 - Unauthenticated Stored Cross-Site Scripting via 'custom_order' Parameter CVE-2026-19914 7.2 Afifudin Maarif August 31, 2026
3 Welcart e-Commerce < 2.12.1 - Unauthenticated Session Fixation CVE-2025-15671 6.5 Maktoum (bRpsd) August 19, 2026
4 Welcart e-Commerce < 2.11.33 - Unauthenticated Payment Bypass CVE-2026-15213 5.3 Pedro Pinho August 14, 2026
5 Welcart e-Commerce <= 2.11.31 - Unauthenticated Stored Cross-Site Scripting CVE-2026-27539 7.2 K. Sorrachat August 11, 2026
6 Welcart e-Commerce <= 2.11.31 - Authenticated (Editor+) SQL Injection CVE-2026-16065 4.9 Yaswanth Reddy Sunkara July 31, 2026
7 Welcart e-Commerce <= 2.11.28 - Missing Authorization CVE-2026-49775 5.3 dodoh4t June 4, 2026
8 Welcart e-Commerce <= 2.11.24 - Missing Authorization to Unauthenticated Information Exposure CVE-2025-12979 5.3 Marcin Dudek (dudekmar) November 12, 2025
9 Welcart e-Commerce <= 2.11.22 - Authenticated (Editor+) Stored Cross-Site Scripting via order_mail CVE-2025-10651 5.5 Miguel Santareno October 21, 2025
10 Welcart e-Commerce <= 2.11.24 - Missing Authorization CVE-2025-62953 4.3 Legion Hunter October 14, 2025

Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!

Learn more

Want to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.

Get Wordfence

The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.

Documentation