Vulnerability · Published Sep 25, 2026 · Assigned by WPScan

CVE-2026-88848MasterStudy LMS 1.9 - < 3.7.50 - Subscriber+ Membership Plan Quota and Category Restriction Bypass

Medium 4.2

In plain English

A medium-severity incorrect authorization in MasterStudy LMS from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS 3.1)4.2Medium

Exploit odds (30 days)0.1%top 98.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The MasterStudy LMS WordPress plugin from 1.9 before 3.7.50 does not verify that a course a member asks to enrol in is covered by their membership plan, nor that the plan identifier submitted with the request is one they actually hold, allowing any member to enrol themselves into restricted paid courses outside their plan and beyond the number of courses it entitles them to.

Affected products (as reported)

Vendor	Product	Versions
Unknown	MasterStudy LMS	1.9 – before 3.7.50

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

References

https://wpscan.com/vulnerability/13258868-aeed-4664-8b38-ffb1f802895a/ exploit, vdb-entry, technical-description