Medium severity · published Dec 5, 2025
CVE-2025-66581
Frappe LMS is Missing Server-Side Authorization in Business Logic
6.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LM
lms · frappe
< 2.41.0 · source: vendor
LE
Learning · Frappe
before 2.41.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-66581
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-66581
Third Party Advisory
https://github.com/frappe/lms/security/advisories/GHSA-2ch7-c74m-432m
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