# CVE-2026-88845: MasterStudy LMS WordPress plugin authorization bypass in demo import

Source: https://junglewise.ai/threats/cve-2026-88845-the-masterstudy-lms-wordpress-plugin-wordpress-plugin-before-3-7  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-24. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-88845 · Severity: medium · CVSS 4.3 · Published 2026-09-24

MasterStudy LMS is a WordPress plugin that provides learning management system capabilities for course delivery. An authenticated user with minimal privileges, such as a subscriber, can bypass security checks to create and publish courses and lessons attributed to their own account without proper authorization. This allows low-privilege account holders to publish content they should not be able to create, potentially compromising the integrity of course catalogs.

Technologies: [MasterStudy LMS](https://junglewise.ai/threats/technologies/masterstudy-masterstudy-lms). Vendors: [MasterStudy](https://junglewise.ai/threats/vendors/masterstudy).

## Quick answers

**Is CVE-2026-88845 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-88845 being exploited in the wild.

**How severe is CVE-2026-88845?** Medium severity, with a CVSS score of 4.3, published 24 September 2026.

**Which products and versions are affected?** MasterStudy LMS 2.3.0 through 3.7.49.

**Is there a fix for CVE-2026-88845?** A patch was published on 2026-09-24: Fixed in version 3.7.50 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-88845 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-88845?** Check whether you run MasterStudy 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 plugin fails to perform capability or nonce checks on an administrative demo import maintenance action, violating authorization controls (CWE-862). Any authenticated user can trigger this action to create published course and lesson content attributed to their account. The vulnerability affects versions before 3.7.50, where the fix validates proper authorization prior to executing the maintenance routine.

## Affected products

- MasterStudy MasterStudy LMS 2.3.0 through 3.7.49

## Timeline

- 2026-09-22: disclosed
- 2026-09-24: patched: Fixed in version 3.7.50

## References

- [https://wpscan.com/vulnerability/a1693fd3-7ba9-4a59-99ea-7f9fd00a9de1/](https://wpscan.com/vulnerability/a1693fd3-7ba9-4a59-99ea-7f9fd00a9de1/)

## Related threats

- [MasterStudy LMS privilege escalation in user enrollment](https://junglewise.ai/threats/cve-2026-88849-the-masterstudy-lms-wordpress-plugin-wordpress-plugin-before-3-7)
- [MasterStudy LMS authorization bypass in course progress recording](https://junglewise.ai/threats/cve-2026-88847-the-masterstudy-lms-wordpress-plugin-wordpress-plugin-before-3-7)
- [MasterStudy LMS WordPress Plugin account creation bypass with registration disabled](https://junglewise.ai/threats/cve-2026-88846-the-masterstudy-lms-wordpress-plugin-wordpress-plugin-before-3-7)
- [MasterStudy LMS stored HTML injection in course discussions](https://junglewise.ai/threats/cve-2026-81338-the-masterstudy-lms-wordpress-plugin-wordpress-plugin-before-3-7)