# CVE-2026-15156: WPDeveloper Essential Addons for Elementor Stored XSS in Reading Progress Settings

Source: https://junglewise.ai/threats/cve-2026-15156-wpdeveloper-essential-addons-for-elementor-stored-xss-in-reading  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-21. Updated: 2026-07-21  
License: CC BY 4.0 with a link back

CVE-2026-15156 · Severity: medium · CVSS 6.4 · Published 2026-07-21

A popular WordPress plugin used to add custom templates and widgets to websites is vulnerable to a security flaw. This issue allows users with basic contributor-level access to inject malicious scripts into website pages. When other visitors or administrators view these pages, the scripts execute, potentially leading to unauthorized actions or data theft.

Technologies: [WPDeveloper Essential Addons for Elementor](https://junglewise.ai/threats/technologies/essential-addons-for-elementor). Vendors: [WPDeveloper](https://junglewise.ai/threats/vendors/wpdeveloper).

## Quick answers

**Is CVE-2026-15156 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-15156 being exploited in the wild.

**How severe is CVE-2026-15156?** Medium severity, with a CVSS score of 6.4, published 21 July 2026.

**Which products and versions are affected?** WPDeveloper Essential Addons for Elementor <= 6.6.11.

**Is there a fix for CVE-2026-15156?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-15156 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-15156?** Check whether you run WPDeveloper Essential Addons for Elementor at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The Essential Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) due to insufficient input sanitization and output escaping in the Reading Progress Global Color Settings. An authenticated attacker with contributor-level permissions or higher can inject arbitrary web scripts into a page. These scripts are stored on the server and execute in the context of any user's browser who visits the affected page. The vulnerability is present in all versions up to and including 6.6.11 and was addressed in version 6.7.0.

## Affected products

- wpdevteam Essential Addons for Elementor – Popular Elementor Templates & Widgets <= 6.6.11

## Timeline

- 2026-07-21: disclosed
- 2026-07-21: advisory

## References

- [https://plugins.trac.wordpress.org/browser/essential-addons-for-elementor-lite/tags/6.6.10/includes/Classes/Bootstrap.php](https://plugins.trac.wordpress.org/browser/essential-addons-for-elementor-lite/tags/6.6.10/includes/Classes/Bootstrap.php)
- [https://plugins.trac.wordpress.org/browser/essential-addons-for-elementor-lite/tags/6.6.10/includes/Traits/Core.php](https://plugins.trac.wordpress.org/browser/essential-addons-for-elementor-lite/tags/6.6.10/includes/Traits/Core.php)
- [https://plugins.trac.wordpress.org/browser/essential-addons-for-elementor-lite/tags/6.6.10/includes/Traits/Elements.php](https://plugins.trac.wordpress.org/browser/essential-addons-for-elementor-lite/tags/6.6.10/includes/Traits/Elements.php)
- [https://plugins.trac.wordpress.org/changeset/3610135/essential-addons-for-elementor-lite/trunk/includes/Traits/Elements.php](https://plugins.trac.wordpress.org/changeset/3610135/essential-addons-for-elementor-lite/trunk/includes/Traits/Elements.php)
- [https://plugins.trac.wordpress.org/changeset?old_path=%2Fessential-addons-for-elementor-lite/tags/6.6.11&new_path=%2Fessential-addons-for-elementor-lite/tags/6.7.0](https://plugins.trac.wordpress.org/changeset?old_path=%2Fessential-addons-for-elementor-lite/tags/6.6.11&new_path=%2Fessential-addons-for-elementor-lite/tags/6.7.0)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/dde0cf3a-778b-4b5f-ac0e-600505d918ae?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/dde0cf3a-778b-4b5f-ac0e-600505d918ae?source=cve)

## Related threats

- [WPDeveloper Essential Addons for Elementor privilege escalation](https://junglewise.ai/threats/cve-2026-110898-incorrect-privilege-assignment-vulnerability-in-wpdeveloper)
- [WPDeveloper Essential Addons for Elementor stored cross-site scripting](https://junglewise.ai/threats/cve-2026-102394-improper-neutralization-of-input-during-web-page-generation)
- [WPDeveloper Essential Addons for Elementor authentication bypass](https://junglewise.ai/threats/cve-2026-81777-wpdeveloper-essential-addons-for-elementor-authentication-bypass)
- [Essential Addons for Elementor information disclosure in product-comparison feature](https://junglewise.ai/threats/cve-2026-13345-essential-addons-for-elementor-information-disclosure-in-product)
- [WPDeveloper Essential Addons for Elementor Stored XSS in Fancy Text Widget](https://junglewise.ai/threats/cve-2026-15145-wpdeveloper-essential-addons-for-elementor-stored-xss-in-fancy)