What is CVE-2026-30876?

CVE-2026-30876 is a medium-severity vulnerability in Chamilo Chamilo-Lms, classified under Observable Response Discrepancy. CVSS score: 5.3/10. Published 2026-03-16.

How severe is CVE-2026-30876?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Chamilo Chamilo-Lms

CVE-2026-30876

Chamilo LMS is a learning management system. Prior to version 1.11.36, Chamilo is vulnerable to user enumeration with valid/invalid username. This issue has been patched in version 1.11.36.

Published 2026-03-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (25.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Chamilo Chamilo-Lms — versions < 1.11.36
Chamilo Lms

Weakness classification (CWE)

CWE-204 — Observable Response Discrepancy

References

github.com/chamilo/chamilo-lms/security/advisories/GHSA-cqr8-vvqp-4mp4 (Vendor Advisory)
github.com/chamilo/chamilo-lms/releases/tag/v1.11.36 (Product, Release Notes)

Frequently asked questions

What is CVE-2026-30876?: CVE-2026-30876 is a medium-severity vulnerability in Chamilo Chamilo-Lms, classified under Observable Response Discrepancy. CVSS score: 5.3/10. Published 2026-03-16.
How severe is CVE-2026-30876?: Medium severity. CVSS v3 base score is 5.3 out of 10.