SQL Injection in Chamilo Chamilo-Lms
CVE-2026-33714
Chamilo is an open-source learning management system (LMS). Version 2.0.0-RC.2 contains a SQL Injection vulnerability in the statistics AJAX endpoint, which is an incomplete fix for CVE-2026-30881. While CVE-2026-30881 was patched by applying Security::remove_XSS() to the date_start and date_end parameters in the get_user_registration_by_month action, the same parameters remain unsanitized in the users_active action within the same file (public/main/inc/ajax/statistics.ajax.php), where they are directly interpolated into a SQL query. An authenticated admin can exploit this to perform time-based blind SQL injection, enabling extraction of arbitrary data from the database. This issue has been fixed in version 2.0.0.
Vulnerability class: SQL Injection
EPSS: 0.003 (17.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Chamilo Chamilo-lms — versions >= 2.0.0-RC.2, < 2.0.0
- Chamilo Chamilo_lms — versions 2.0.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-33714?
- CVE-2026-33714 is a high-severity vulnerability in Chamilo Chamilo-Lms, classified under SQL Injection. CVSS score: 7.2/10. Published 2026-04-14.
- How severe is CVE-2026-33714?
- High severity. CVSS v3 base score is 7.2 out of 10.