CVE-2026-17161
Received Received - Intake

Stored XSS in WowStore WooCommerce Plugin via filterMobileText Block

Publication date: 2026-07-29

Last updated on: 2026-07-29

Assigner: Wordfence

Description
The WowStore – Store Builder & Product Blocks for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'filterMobileText' Block Attribute in all versions up to, and including, 4.4.24 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 save-time wp_kses_post sanitization is ineffective because the payload is stored inside a Gutenberg block delimiter comment as JSON, which wp_kses_post preserves, allowing an attribute-breakout string to survive to the server-side render_callback.

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Meta Information

Published
2026-07-29
Last Modified
2026-07-29
Generated
2026-07-29
AI Q&A
2026-07-29
EPSS Evaluated
N/A
NVD
CVE-2026-17161
EUVD
EUVD-2026-50100

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
woocommerce store_builder to 4.4.24 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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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.

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Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) flaw in the WowStore plugin for WordPress. It exists due to insufficient input sanitization and output escaping in the 'filterMobileText' block attribute. Authenticated attackers with contributor-level access or higher can inject malicious scripts into pages. These scripts execute when users access the compromised pages.

Detection Guidance

To detect this vulnerability, inspect WordPress sites using the WowStore plugin version 4.4.24 or lower. Check for suspicious Gutenberg block attributes containing executable scripts in the 'filterMobileText' block. Review server logs for unusual payloads in block comments.

Impact Analysis

If exploited, this vulnerability allows attackers to inject arbitrary web scripts into your WordPress site. This could lead to unauthorized actions on behalf of users, theft of sensitive data, or defacement of your website. Users visiting infected pages may have their sessions hijacked or be redirected to malicious sites.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR and HIPAA by exposing user data to unauthorized parties. GDPR requires protection of personal data, while HIPAA mandates safeguards for protected health information. A successful XSS attack may result in data breaches, triggering regulatory penalties and legal consequences.

Mitigation Strategies

Immediately update the WowStore plugin to the latest version. Remove any untrusted user accounts with contributor-level access or higher. Scan WordPress installations for malicious scripts in block attributes and remove them.

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