CVE-2026-114388 chamilo CVE debrief

Who should care

Defenders responsible for Chamilo LMS deployments, especially those using pre-release versions, should assess exposure and prioritize remediation. This includes verifying the version of Chamilo LMS, reviewing and restricting access to GradebookController, and implementing authentication and authorization for the set_default_certificate endpoint. Additionally, defenders should monitor for suspicious activity on gradebook certificate configuration and remedi

Why it matters

The missing authorization vulnerability in Chamilo LMS 2.0.0-alpha.1 before 2.0.0-RC.3 allows unauthenticated users to modify gradebook certificates, requiring defenders to verify and remediate affected deployments.

• Verify and restrict access to GradebookController
• Implement authentication and authorization for set_default_certificate endpoint
• Monitor for suspicious activity on gradebook certificate configuration
• Remediate affected Chamilo LMS deployments

Technical summary

The vulnerability exists in Chamilo LMS 2.0.0-alpha.1 before 2.0.0-RC.3 due to missing access control in GradebookController, allowing unauthenticated users to modify gradebook certificates. This is achieved by requesting the set_default_certificate endpoint with any course id and document id, which enables tampering with certificate configuration for any course. Defenders should prioritize verifying and remediating affected Chamilo LMS deployments, especially those using pre-release versions, to prevent unauthorized modifications.

Defensive priority

Defenders should prioritize verifying and remediating affected Chamilo LMS deployments, especially those using pre-release versions.

Recommended defensive actions

• Verify Chamilo LMS version and assess exposure
• Review and restrict access to GradebookController
• Implement authentication and authorization for set_default_certificate endpoint
• Monitor for suspicious activity on gradebook certificate configuration
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and source item provide details on the missing authorization vulnerability in GradebookController. However, the corpus does not establish versions beyond 2.0.0-alpha.1 and 2.0.0-RC.3, exploitation, impact, or remediation beyond vendor-supplied links.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.