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CVE-2026-82847— Masteriyo LMS < 3.4.1 - Instructor+ Stored XSS via Course Highlights

Quick assessment

Affected
Unknown Masteriyo LMS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Masteriyo LMS WordPress 插件在 3.4.1 版本之前，在课程编辑器中回显其中一个课程字段前未进行净化和转义处理，使得具有讲师角色（instructor）的用户能够对权限更高的用户（如管理员）发起存储型跨站脚本（Stored XSS）攻击。

AI Predicted 6.1 Difficulty: Moderate
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I. Basic Information for CVE-2026-82847

Vulnerability Information
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Vulnerability Title
Masteriyo LMS < 3.4.1 - Instructor+ Stored XSS via Course Highlights
Source: CVE Program / CVE List V5
Vulnerability Description
The Masteriyo LMS WordPress plugin before 3.4.1 does not sanitise and escape one of its course fields before outputting it back in the course editor, allowing users with the instructor role to perform Stored Cross-Site Scripting attacks against higher privileged users such as administrators.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Masteriyo LMS 0 ~ 3.4.1 -

II. Public POCs for CVE-2026-82847

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III. Intelligence Information for CVE-2026-82847

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Vendor Advisories for CVE-2026-82847 (1)

Same Patch Batch · Unknown · 2026-09-12 · 36 CVEs total

CVE-2026-77006 WebTotem Backups <= 1.0.1 - Subscriber+ Arbitrary File Deletion via Path Traversal
CVE-2026-82845 Masteriyo LMS < 3.4.1 - Subscriber+ PHP Object Injection
CVE-2026-81742 BE REST Endpoints <= 1.0.0 - Unauthenticated Stored XSS and Widget Manipulation
CVE-2026-84023 BEAR - Bulk Editor and Products Manager Professional for WooCommerce < 1.2.2 - Taxonomy Te
CVE-2026-81090 Gpx2Graphics <= 0.3 - Arbitrary File Upload via CSRF
CVE-2026-81429 Export & Import WPBakery Page Builder <= 1.0.2 - Stored XSS via CSRF
CVE-2026-81402 DS Ad Rotator <= 0.8 - Unauthenticated Arbitrary File Upload
CVE-2026-80491 SAMO Forms <= 1.0.0 - Unauthenticated SQLi
CVE-2026-80494 Yogeta WP Cloud <= 1.0 - Unauthenticated Arbitrary File Download
CVE-2026-82851 Masteriyo LMS 1.14.0 - 3.4.0 - Instructor+ Arbitrary Post Disclosure via IDOR
CVE-2026-77752 Temporary Login Without Password 1.5 - 1.9.8 - Multisite Subsite Admin+ Network Super Admi
CVE-2026-77689 Amelia Pro 9.0 - 9.8 - Unauthenticated Payment Bypass
CVE-2026-77705 Amelia < 2.4.10 - Amelia Manager+ WordPress Account Takeover
CVE-2026-77753 Temporary Login Without Password < 1.9.9 - Authenticated Temporary Access Revocation Bypas
CVE-2026-78152 SureRank 1.6.2 - 1.10.0 - Unauthenticated Author Email Disclosure via Person Schema
CVE-2026-75800 Frontegg SAML SSO <= 1.0.1 - Unauthenticated Account Takeover via Unverified SAMLResponse
CVE-2026-77005 Code Monkeys Proposals <= 1.0.1 - Subscriber+ Arbitrary File Deletion via Path Traversal
CVE-2026-83532 Custom Menu Wizard <= 3.3.1 - Contributor+ Stored XSS via Shortcode Attributes
CVE-2026-87797 Client Invoicing by Sprout Invoices < 20.8.16 - Subscriber+ Private Note Overwrite via si_
CVE-2026-87918 WPBot < 8.5.7 - Unauthenticated AI Provider API Abuse via Multiple AJAX Actions

Showing top 20 of 36 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Masteriyo LMS
Same vendor: Unknown

V. Comments for CVE-2026-82847

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