CVE-2026-33714
SQL Injection in Chamilo LMS Statistics AJAX Allows Data Extraction
Publication date: 2026-04-14
Last updated on: 2026-04-23
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| chamilo | chamilo_lms | 2.0.0 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-89 | The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in Chamilo version 2.0.0-RC.2, an open-source learning management system. It is a SQL Injection flaw found in the statistics AJAX endpoint. Specifically, the date_start and date_end parameters in the users_active action are not properly sanitized and are directly used in a SQL query. An authenticated admin can exploit this to perform a time-based blind SQL injection, allowing them to extract arbitrary data from the database.
This issue is a partial fix failure from a previous vulnerability (CVE-2026-30881), where only one action was properly sanitized but the other remained vulnerable.
How can this vulnerability impact me? :
An attacker with authenticated admin access can exploit this vulnerability to perform time-based blind SQL injection attacks. This allows the attacker to extract arbitrary data from the database, potentially exposing sensitive information.
Such unauthorized data extraction can lead to data breaches, loss of data integrity, and compromise of the system's confidentiality.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should upgrade Chamilo to version 2.0.0 or later, where the issue has been fixed.
Ensure that only authenticated administrators have access to the vulnerable AJAX endpoint to reduce risk.