# CVE-2026-15444: Themeum Tutor LMS SQL injection in coupon_code

Source: https://junglewise.ai/threats/cve-2026-15444-themeum-tutor-lms-sql-injection-in-coupon-code  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-28. Updated: 2026-07-28  
License: CC BY 4.0 with a link back

CVE-2026-15444 · Severity: medium · CVSS 4.9 · Published 2026-07-28

Tutor LMS, a popular WordPress plugin for managing online courses and eLearning platforms, contains a security vulnerability in its coupon management system. An attacker with administrative access could exploit this flaw to bypass standard security controls and access sensitive information stored in the website's database. While this requires high-level permissions to execute, it could lead to the unauthorized extraction of user data or site configuration details.

Technologies: [Themeum Tutor LMS](https://junglewise.ai/threats/technologies/tutor-lms). Vendors: [Themeum](https://junglewise.ai/threats/vendors/themeum).

## Quick answers

**Is CVE-2026-15444 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-15444 being exploited in the wild.

**How severe is CVE-2026-15444?** Medium severity, with a CVSS score of 4.9, published 28 July 2026.

**Which products and versions are affected?** Themeum Tutor LMS up to, and including, 4.0.1.

**Is there a fix for CVE-2026-15444?** 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-2026-15444 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-15444?** Check whether you run Themeum Tutor LMS 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 Tutor LMS plugin for WordPress is vulnerable to a generic SQL Injection via the 'coupon_code' parameter in versions up to and including 4.0.1. The vulnerability stems from insufficient escaping of user-supplied input and a lack of proper SQL query preparation in components such as CouponModel.php and CouponController.php. An authenticated attacker with administrator-level privileges can append malicious SQL queries to existing database calls. This enables the extraction of sensitive information from the WordPress database. A patch has been released in the plugin's version control system (changeset 3618540).

## Affected products

- Themeum Tutor LMS – eLearning and online course solution up to, and including, 4.0.1

## Timeline

- 2026-07-28: disclosed
- 2026-07-28: advisory

## References

- [https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/classes/Input.php](https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/classes/Input.php)
- [https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/ecommerce/CouponController.php](https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/ecommerce/CouponController.php)
- [https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/helpers/QueryHelper.php](https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/helpers/QueryHelper.php)
- [https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/models/CouponModel.php](https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.1/models/CouponModel.php)
- [https://plugins.trac.wordpress.org/changeset?reponame=&old=3618540%40tutor&new=3618540%40tutor](https://plugins.trac.wordpress.org/changeset?reponame=&old=3618540%40tutor&new=3618540%40tutor)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/9d637d7b-7a47-40db-a931-ec7ca723dfab?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/9d637d7b-7a47-40db-a931-ec7ca723dfab?source=cve)

## Related threats

- [Tutor LMS insecure direct object reference in API routing](https://junglewise.ai/threats/cve-2026-93779-the-tutor-lms-elearning-and-online-course-solution-plugin-for)
- [Themeum Tutor LMS stored cross-site scripting](https://junglewise.ai/threats/cve-2026-111407-improper-neutralization-of-input-during-web-page-generation)
- [Tutor LMS insecure direct object reference in course update](https://junglewise.ai/threats/cve-2026-92715-the-tutor-lms-elearning-and-online-course-solution-plugin-for)
- [Tutor LMS stored cross-site scripting via display_name](https://junglewise.ai/threats/cve-2026-93681-the-tutor-lms-elearning-and-online-course-solution-plugin-for)
- [Themeum Tutor LMS reflected cross-site scripting vulnerability](https://junglewise.ai/threats/cve-2026-42702-improper-neutralization-of-input-during-web-page-generation-cross)