CVE-2025-66581
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk10th percentile - higher than 10% of all known CVEs
Summary
Frappe Learning Management System (LMS) prior to 2.41.0 has a flaw in server-side authorization logic that allowed authenticated users to perform actions beyond their assigned roles across multiple features. Because affected endpoints relied on client-side or UI-level checks instead of enforcing permissions on the server, users with low-privileged roles (such as students) could perform operations intended only for instructors or administrators via directly using the APIs. This vulnerability is fixed in 2.41.0.
Risk Assessment
Users with low privileges can perform administrative operations, potentially leading to unauthorized content changes, data integrity issues, or privilege escalation.
Recommendation
Update Frappe LMS to version 2.41.0 or later. Additionally, conduct a permission audit and ensure authorization checks are enforced server-side.
Other vulnerabilities in Frappe LMS
See all- CVE-2026-39405Critical
In Frappe Learning Management System (LMS) versions 2.50.0 and below, a user with course editing role can upload a SCORM ZIP package to write files outside the intended directory. Fixed in version 2.50.1.
- CVE-2026-39385High
Frappe LMS version 2.51.0 and earlier allows users to bypass payment validation for courses by using an unrelated batch. This is fixed in version 2.52.0.
- CVE-2026-39415Medium
Frappe Learning Management System (LMS) before version 2.46.0 allows students to modify quiz scores before submission. The application relies on client-side calculations that can be altered using browser developer tools, compromising score integrity.
- CVE-2026-34606Medium
Frappe LMS is vulnerable to stored Cross-Site Scripting (XSS). The vulnerability affects versions from 2.27.0 to before 2.48.0.
Original NVD description (English source)
Frappe Learning Management System (LMS) is a learning system that helps users structure their content. Prior to 2.41.0, a flaw in the server-side authorization logic allowed authenticated users to perform actions beyond their assigned roles across multiple features. Because the affected endpoints relied on client-side or UI-level checks instead of enforcing permissions on the server, users with low-privileged roles (such as students) could perform operations intended only for instructors or administrators via directly using the API's. This vulnerability is fixed in 2.41.0.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS