CVE-2023-4278

MasterStudy LMS < 3.0.18 - Unauthenticated Instructor Account Creation

HIGH
7.5
CVSS Score
Published: September 11, 2023 at 07:46 PM UTC
Updated: June 17, 2026 at 06:37 AM UTC
1 product affected across 1 vendorMasterStudy LMS

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Severity
HIGH7.5
Exploit prediction
EPSS 6%
SSVC
PoC

Description

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.0.18 does not have proper checks in place during registration allowing anyone to register on the site as an instructor. They can then add courses and/or posts.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.0.18
Affected range stops below 3.0.18, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE

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