SQL Injection in Chamilo Chamilo-Lms
CVE-2026-30881
Chamilo LMS is a learning management system. Version 1.11.34 and prior contains a SQL Injection vulnerability in the statistics AJAX endpoint. The parameters date_start and date_end from $_REQUEST are embedded directly into a raw SQL string without proper sanitization. Although Database::escape_string() is called downstream, its output is immediately neutralized by str_replace("\'", "'", ...), which restores any injected single quotes — effectively bypassing the escaping mechanism entirely. This allows an authenticated attacker to inject arbitrary SQL statements into the database query, enabling blind time-based and conditional data extraction. This issue has been patched in version 1.11.36.
Vulnerability class: SQL Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (38.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Chamilo Chamilo-Lms — versions < 1.11.36
- Chamilo Lms
Weakness classification (CWE)
References
- github.com/chamilo/chamilo-lms/security/advisories/GHSA-5ggx-x2cv-4h44 (Vendor Advisory)
- github.com/chamilo/chamilo-lms/releases/tag/v1.11.36 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-30881?
- CVE-2026-30881 is a high-severity vulnerability in Chamilo Chamilo-Lms, classified under SQL Injection. CVSS score: 8.8/10. Published 2026-03-16.
- How severe is CVE-2026-30881?
- High severity. CVSS v3 base score is 8.8 out of 10.