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CVE-2026-81196— MasterStudy LMS < 3.7.46 - Instructor+ Quiz Answer Disclosure via IDOR

Quick assessment

Affected
Unknown MasterStudy LMS WordPress Plugin
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.

MasterStudy LMS WordPress 插件在 3.7.46 版本之前未正确验证测验问题标识符的所有权，使得具有教员权限的用户能够读取其他教员的测验问题，包括正确答案和解析。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.18% · P8

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown MasterStudy LMS WordPress Plugin < 3.7.46 affected
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I. Basic Information for CVE-2026-81196

Vulnerability Information
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Vulnerability Title
MasterStudy LMS < 3.7.46 - Instructor+ Quiz Answer Disclosure via IDOR
Source: CVE Program / CVE List V5
Vulnerability Description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of quiz question identifiers, allowing users with instructor access to read other instructors' quiz questions, including the correct answers and explanations.
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 MasterStudy LMS WordPress Plugin 0 ~ 3.7.46 -

II. Public POCs for CVE-2026-81196

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III. Intelligence Information for CVE-2026-81196

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Other References for CVE-2026-81196 (1)

Same Patch Batch · Unknown · 2026-09-02 · 66 CVEs total

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CVE-2026-77009 9.9 CRITICAL WatchMan-Site7 3.1.1 - 4.2.0 - Subscriber+ RCE via Debug Console
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CVE-2025-15485 8.2 HIGH Auto x LINE <= 1.0.0 – Unauthenticated REST API Endpoints Call
CVE-2026-83547 6.8 MEDIUM Xpro Elementor Addons 1.6.0 - 1.7.3 - Contributor+ Stored XSS via Multiple Widgets
CVE-2026-82884 6.8 MEDIUM All in One SEO < 5.0.0.1 - Contributor+ Stored XSS via ai-assistant Block
CVE-2026-10821 6.6 MEDIUM Yoast SEO Premium < 27.6.1 - Author+ Arbitrary .htaccess Directive Injection to RCE
CVE-2026-2688 6.5 MEDIUM CM HIPAA Forms < 3.2.0 - Unauthenticated Authorization Bypass
CVE-2024-3773 5.9 MEDIUM LiveJournal Shortcode <= 1.1.1 - Contributor+ Stored XSS via Shortcode
CVE-2026-2811 5.4 MEDIUM Ajaxify Comments < 3.2 - Unauthenticated HTTP Header Injection
CVE-2026-8151 5.4 MEDIUM Simple Membership MailChimp Integration < 1.9.8 - API Key Update via CSRF
CVE-2025-15481 5.3 MEDIUM Notification Bar for WordPress <= 1.1.8 – Unauthenticated Subscriber Data Disclosure
CVE-2026-17563 5.3 MEDIUM WP User Frontend < 4.3.11 - Unauthenticated Post Creation via Subscription-Gated Form
CVE-2025-8945 5.3 MEDIUM Wp Edit Password Protected < 1.3.5 - Protection Bypass via REST API
CVE-2025-15490 5.3 MEDIUM Passster < 4.2.26 - Global Protection Bypass
CVE-2026-77793 5.3 MEDIUM RegistrationMagic < 6.0.9.9 - Unauthenticated Payment Bypass via Omitted Price Field
CVE-2026-77794 5.3 MEDIUM RegistrationMagic 6.0.0.0 - 6.0.9.8 - Unauthenticated Payment Bypass via Zero Quantity
CVE-2025-15489 5.3 MEDIUM Passster < 4.2.24 - Password Protection Bypass
CVE-2026-83533 5.3 MEDIUM WP Express Checkout < 2.4.9 - Unauthenticated Payment Bypass via wpec_process_payment
CVE-2026-78153 5.3 MEDIUM Restrict User Access 2.6 - 2.8 - Unauthenticated Content Protection Bypass via REST API Ro

Showing top 20 of 66 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: MasterStudy LMS WordPress Plugin
Same vendor: Unknown

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