Auth bypass in Frappe Learning
CVE-2025-66581
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 class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.002 (10.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Frappe Learning
- Frappe Lms — versions < 2.41.0
Weakness classification (CWE)
References
- github.com/frappe/lms/security/advisories/GHSA-2ch7-c74m-432m (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-66581?
- CVE-2025-66581 is a medium-severity vulnerability in Frappe Learning, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2025-12-05.
- How severe is CVE-2025-66581?
- Medium severity. CVSS v3 base score is 6.5 out of 10.