Auth bypass in Chamilo Lms
CVE-2026-1106
A security flaw has been discovered in Chamilo LMS up to 2.0.0 Beta 1. This issue affects the function deleteLegal of the file src/CoreBundle/Controller/SocialController.php of the component Legal Consent Handler. Performing a manipulation of the argument userId results in improper authorization. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (35.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Chamilo Lms — versions 2.0.0
- Chamilo Lms — versions 2.0.0 Beta 1
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- note-hxlab.wetolink.com/share/w92t1Q0a74Gj (Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2026-1106?
- CVE-2026-1106 is a medium-severity vulnerability in Chamilo Lms, classified under Incorrect Privilege Assignment. CVSS score: 5.4/10. Published 2026-01-18.
- How severe is CVE-2026-1106?
- Medium severity. CVSS v3 base score is 5.4 out of 10.