CVE-2025-66581 Frappe LMS is Missing Server-Side Authorization in Business Logic
Authenticated low-privileged users can perform instructor or admin actions via API due to missing server-side authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-66581?
CVE-2025-66581 is a low-severity missing authorization vulnerability in frappe lms, published on 5 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-863
Which versions are affected by CVE-2025-66581?
It affects 1 product.
Products include Frappe Learning.
How do I fix CVE-2025-66581?
No fix has been published for CVE-2025-66581 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-66581 being exploited?
There is no known exploitation of CVE-2025-66581 in the wild and no public exploit code.
Other vulnerabilities in frappe lms
- CVE-2023-5555 Cross-site Scripting (XSS) - Generic in frappe/lms
- CVE-2026-34606 Stored XSS in Frappe LMS
- CVE-2026-26977 Frappe Learning Management System exposes details of unpublished courses to unauthorized users
- CVE-2025-11280 Frappe LMS Assignment Picture files direct request
- CVE-2023-42807 Frappe LMS SQL Injection Issue on People Page
Sources
Also known as GHSA-2ch7-c74m-432m.