CVE-2026-76128
Received Received - Intake

Stored XSS in eCommerce Product Catalog WordPress Plugin

Publication date: 2026-08-25

Last updated on: 2026-08-25

Assigner: Wordfence

Description
The eCommerce Product Catalog plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'style' Shortcode Attribute in all versions up to, and including, 3.5.10 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload bypasses WordPress's save-time wp_kses_post sanitization because the malicious content is stored inside shortcode brackets with no HTML tags; the tainted HTML output is only generated at render time by the shortcode handler.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-25
Last Modified
2026-08-25
Generated
2026-08-25
AI Q&A
2026-08-25
EPSS Evaluated
N/A
NVD
CVE-2026-76128
EUVD
EUVD-2026-65357

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wordfence ecommerce_product_catalog to 3.5.10 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) flaw in the eCommerce Product Catalog WordPress plugin. It exists in versions up to 3.5.10 due to insufficient input sanitization and output escaping in the 'style' shortcode attribute. Authenticated attackers with contributor-level access or higher can inject malicious scripts that execute when users view affected pages. The attack bypasses WordPress's built-in sanitization because the payload is stored inside shortcode brackets without HTML tags, only becoming active when the page renders.

Detection Guidance

Check WordPress installations for the eCommerce Product Catalog plugin versions up to 3.5.10. Inspect pages or posts for injected scripts in style shortcode attributes. Use WordPress admin panel to review contributor-level user activity and recent changes.

Impact Analysis

This vulnerability allows attackers to inject malicious scripts into your WordPress site. If exploited, it could lead to unauthorized actions on behalf of users, theft of sensitive data like cookies or session tokens, or defacement of your website. Users visiting compromised pages may have their interactions monitored or be redirected to malicious sites without their knowledge.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR by exposing user data through script injection, potentially violating data protection requirements. For HIPAA, it may risk unauthorized access to protected health information if exploited on healthcare-related sites. Both standards require protecting user data integrity and confidentiality, which this flaw undermines.

Mitigation Strategies

Update the eCommerce Product Catalog plugin to the latest version beyond 3.5.10. Remove any suspicious scripts from style shortcode attributes in posts or pages. Review and restrict contributor-level user permissions to minimize attack surface.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-76128. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart