Chamilo LMS up to 1.11.37 AJAX Endpoint /main/template/default/ file information disclosure

Summaryinfo

A vulnerability, which was classified as problematic, was found in Chamilo LMS up to 1.11.37. This issue affects some unknown processing of the file /main/template/default/ of the component AJAX Endpoint. Executing a manipulation can lead to file information disclosure. This vulnerability is tracked as CVE-2026-33705. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Chamilo LMS up to 1.11.37. This vulnerability affects some unknown functionality of the file /main/template/default/ of the component AJAX Endpoint. The manipulation with an unknown input leads to a file information disclosure vulnerability. The CWE definition for the vulnerability is CWE-538. The product places sensitive information into files or directories that are accessible to actors who are allowed to have access to the files, but not to the sensitive information. As an impact it is known to affect confidentiality. CVE summarizes:

Chamilo LMS is a learning management system. Prior to 1.11.38, Twig template files (.tpl) under /main/template/default/ are directly accessible without authentication via HTTP GET requests. These templates expose internal application logic, variable names, AJAX endpoint URLs, and admin panel structure. This vulnerability is fixed in 1.11.38.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-33705 since 03/23/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1083.

Upgrading to version 1.11.38 eliminates this vulnerability. Applying the patch 4efb5ee8ed849ca147ca1fe7472ef7b98db17bff is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Content Management System

Vendor

• Chamilo

Name

• LMS

Version

• 1.11.0
• 1.11.1
• 1.11.2
• 1.11.3
• 1.11.4
• 1.11.5
• 1.11.6
• 1.11.7
• 1.11.8
• 1.11.9
• 1.11.10
• 1.11.11
• 1.11.12
• 1.11.13
• 1.11.14
• 1.11.15
• 1.11.16
• 1.11.17
• 1.11.18
• 1.11.19
• 1.11.20
• 1.11.21
• 1.11.22
• 1.11.23
• 1.11.24
• 1.11.25
• 1.11.26
• 1.11.27
• 1.11.28
• 1.11.29
• 1.11.30
• 1.11.31
• 1.11.32
• 1.11.33
• 1.11.34
• 1.11.35
• 1.11.36
• 1.11.37

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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