CVE-2026-81338 - Vulnerability Details - OpenCVE

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not properly sanitise and restrict HTML in user-submitted content before storing it and rendering it to other users, allowing users with subscriber-level accounts and above to perform stored HTML injection, such as embedding iframes, that can be leveraged for phishing and content spoofing against other users viewing the content.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00138.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://wpscan.com/vulnerability/e8494c71-fb0f-4ab9-a8b7-8db3745a2d9b/

History

Wed, 23 Sep 2026 11:45:00 +0000

Type	Values Removed	Values Added
Description		The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not properly sanitise and restrict HTML in user-submitted content before storing it and rendering it to other users, allowing users with subscriber-level accounts and above to perform stored HTML injection, such as embedding iframes, that can be leveraged for phishing and content spoofing against other users viewing the content.
Title		MasterStudy LMS < 3.7.50 - Subscriber+ Stored HTML Injection via Course Discussions
Weaknesses		CWE-345
References		https://wpscan.com/vulnerability/e8494c71-fb0f-4ab9-a8b7-8db3745a2d9b/
Metrics		cvssV3_1 `{'score': 4.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2026-09-23T06:00:15.761Z

Updated: 2026-09-23T10:59:21.227Z

Reserved: 2026-08-26T18:07:02.182Z

Link: CVE-2026-81338

Vulnrichment

Updated: 2026-09-23T10:38:19.786Z

NVD

Status : Received

Published: 2026-09-23T06:17:02.150

Modified: 2026-09-23T11:17:11.727

Link: CVE-2026-81338

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-345

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