CVE-2026-33141 Chamilo LMS has an IDOR in REST API Stats Endpoint Exposes Any User's Learning Data
Authenticated users can access other users' learning data, certificates, and grades via the REST API without proper 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-2026-33141?
CVE-2026-33141 is a medium-severity missing authorization vulnerability in Chamilo Chamilo Lms, published on 10 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, an Insecure Direct Object Reference (IDOR) vulnerability in the REST API stats endpoint allows any authenticated user (including low-privilege students with ROLE_USER) to read any other user's learning progress, certificates, and gradebook scores for any course, without enrollment or supervisory relationship. This vulnerability is fixed in 2.0.0-RC.3.
Which versions are affected by CVE-2026-33141?
It affects 1 product.
Products include Chamilo Chamilo Lms.
How do I fix CVE-2026-33141?
No fix has been published for CVE-2026-33141 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-2026-33141 being exploited?
There is no known exploitation of CVE-2026-33141 in the wild and no public exploit code.
Other vulnerabilities in Chamilo Chamilo Lms
Sources
Also known as GHSA-j2pr-2r5w-jrpj.