# CVE-2026-19092: Tutor LMS plugin arbitrary function invocation in template rendering

Source: https://junglewise.ai/threats/cve-2026-19092-tutor-lms-plugin-arbitrary-function-invocation-in-template  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-27. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-19092 · Severity: critical · CVSS 9.8 · Published 2026-08-27

Tutor LMS is a popular WordPress plugin for creating and managing online courses. The plugin fails to properly validate user input when rendering templates, allowing unauthenticated attackers to invoke arbitrary PHP functions without arguments and retrieve their output. This can result in session destruction, deletion of critical WordPress settings, database table corruption, or exposure of sensitive information.

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

## Quick answers

**Is CVE-2026-19092 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-19092 being exploited in the wild.

**How severe is CVE-2026-19092?** Critical severity, with a CVSS score of 9.8, published 27 August 2026.

**Which products and versions are affected?** Themeum Tutor LMS before 4.0.6.

**Is there a fix for CVE-2026-19092?** A patch was published on 2026-08-27: Version 4.0.6 released with fix Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-19092 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-19092?** 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 vulnerability is a variable shadowing / injection flaw in template rendering logic. Request data (GET/POST parameters) can overwrite internal template variables without validation, allowing attackers to control which PHP function gets invoked during template rendering. Since the vulnerability permits only zero-argument function calls, attackers are limited to functions that can be called without parameters, but this includes dangerous functions like wp_destroy_all_sessions(), delete_option(), and potentially direct database manipulation functions. The attack is network-reachable and requires no authentication. Tutor LMS versions before 4.0.6 are affected; the fix restricts request data from shadowing template variables.

## Affected products

- Themeum Tutor LMS before 4.0.6

## Timeline

- 2026-08-26: disclosed
- 2026-08-27: patched: Version 4.0.6 released with fix

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://wpscan.com/vulnerability/da7fb4c7-6d07-4c96-bde2-95bca1797d56/](https://wpscan.com/vulnerability/da7fb4c7-6d07-4c96-bde2-95bca1797d56/)

## 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)