CVE-2026-45140

Chamilo LMS CStudio upload flow allows unauthenticated remote code execution

Chamilo LMS is an open-source learning management system. Prior to 2.0.1, Chamilo LMS allows an unauthenticated remote attacker to execute arbitrary code on the server. The authoritative advisory does not identify the affected endpoint, component, input, or exploitation mechanism. This issue is fixed in version 2.0.1.

Affected

chamilo · chamilo-lms

CVSS v3.1 GITHUB

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

1.33% chance of exploitation in the next 30 days, 71st percentile

Published

2026-09-17

Updated

2026-09-18

Proof-of-concept exploits (1)

• abraxas/CVE-2026-451400★ · 2026-10-07

Security advisories

• advisories/GHSA-g4c3-4g96-6g4m

References

• CVE Record
• NVD entry