CVE-2026-114388: Missing Authorization in chamilo chamilo-lms
Description
Chamilo LMS versions from 2.0.0-alpha.1 up to but not including 2.0.0-RC.3 have a missing access control vulnerability in the GradebookController. This flaw allows unauthenticated users to modify gradebook certificates by accessing the set_default_certificate endpoint with arbitrary course and document IDs. The vulnerability has a medium severity with a CVSS score of 6.9.
CVSS v4.0
Score 6.9medium
Affected software
chamilo
chamilo-lms
pkg:github/chamilo-lmsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Chamilo LMS 2.0.0 pre-release versions starting from 2.0.0-alpha.1 through versions before 2.0.0-RC.3 contain a missing authorization vulnerability in the GradebookController component. Specifically, unauthenticated attackers can invoke the set_default_certificate endpoint with any course ID and document ID to alter certificate configurations for courses without proper access checks. This vulnerability arises from the lack of access control enforcement on this endpoint.
Potential Impact
An attacker without any authentication can modify certificate configurations in the gradebook for any course by exploiting the missing authorization in the set_default_certificate endpoint. This could lead to unauthorized changes in course certification settings, potentially undermining the integrity of course completion records.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected endpoint if possible or monitor for unauthorized access attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-21T11:46:40.984Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad8b86a2cdf04f656f0ca55
Added to database: 10/21/2026, 13:04:42 UTC
Last enriched: 10/21/2026, 13:17:25 UTC
Last updated: 10/21/2026, 13:40:20 UTC
Views: 4
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