# MasterStudy LMS vulnerabilities

Source: https://junglewise.ai/threats/technologies/masterstudy-masterstudy-lms  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/masterstudy-masterstudy-lms.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 5 vulnerabilities in MasterStudy LMS: 0 in the last 7 days and 5 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-88849, was published on 22 October 2026. 1 vulnerability in the last four weeks, down 75% on the four before (4).

## Counts

- Last 7 days: 0
- Last 30 days: 1
- Last 90 days: 5
- All time: 5 (0 critical, 0 exploited in the wild)

## About MasterStudy LMS

WordPress plugin for creating and managing online learning management system courses and content.

## Latest MasterStudy LMS vulnerabilities

- [CVE-2026-88849: MasterStudy LMS privilege escalation in user enrollment](https://junglewise.ai/threats/cve-2026-88849-the-masterstudy-lms-wordpress-plugin-wordpress-plugin-before-3-7) (info, published 22 Oct 2026)
- [CVE-2026-88847: 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) (medium, CVSS 4.3, published 24 Sep 2026)
- [CVE-2026-88846: 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) (medium, CVSS 5.3, published 24 Sep 2026)
- [CVE-2026-88845: MasterStudy LMS WordPress plugin authorization bypass in demo import](https://junglewise.ai/threats/cve-2026-88845-the-masterstudy-lms-wordpress-plugin-wordpress-plugin-before-3-7) (medium, CVSS 4.3, published 24 Sep 2026)
- [CVE-2026-81338: 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) (medium, CVSS 4.6, published 23 Sep 2026)

## Most severe MasterStudy LMS vulnerabilities

- [CVE-2026-88846: 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) (medium, CVSS 5.3, published 24 Sep 2026)
- [CVE-2026-81338: 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) (medium, CVSS 4.6, published 23 Sep 2026)
- [CVE-2026-88847: 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) (medium, CVSS 4.3, published 24 Sep 2026)
- [CVE-2026-88845: MasterStudy LMS WordPress plugin authorization bypass in demo import](https://junglewise.ai/threats/cve-2026-88845-the-masterstudy-lms-wordpress-plugin-wordpress-plugin-before-3-7) (medium, CVSS 4.3, published 24 Sep 2026)
- [CVE-2026-88849: MasterStudy LMS privilege escalation in user enrollment](https://junglewise.ai/threats/cve-2026-88849-the-masterstudy-lms-wordpress-plugin-wordpress-plugin-before-3-7) (info, published 22 Oct 2026)

## Vulnerabilities per week

1 vulnerability in the last four weeks, down 75% on the four before (4).

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 4 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 1 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "MasterStudy LMS vulnerabilities", https://junglewise.ai/threats/technologies/masterstudy-masterstudy-lms, 9 November 2026.