CVE Watch24 jul 2026

CVE-2026-33715

Chamilo LMS is an open-source learning management system. In version 2.0-RC.2, the file public/main/inc/ajax/install.ajax.php is accessible

CVSS

7.2

Alto

EPSS

0.2%

p11

KEV

—

Exploit Today

0-100

Publicado: 14 abr 2026 · Última mod.: 24 jul 2026 · CWE-306 · CWE-918

EPSS · 30d

0.2%EPSS · 30 días0.2%

2026-07-172026-08-13

Descripción técnica

Chamilo LMS is an open-source learning management system. In version 2.0-RC.2, the file public/main/inc/ajax/install.ajax.php is accessible without authentication on fully installed instances because, unlike other AJAX endpoints, it does not include the global.inc.php file that performs authentication and installation-completed checks. Its test_mailer action accepts an arbitrary Symfony Mailer DSN string from POST data and uses it to connect to an attacker-specified SMTP server, enabling Server-Side Request Forgery (SSRF) into internal networks via the SMTP protocol. An unauthenticated attacker can also abuse this to weaponize the Chamilo server as an open email relay for phishing and spam campaigns, with emails appearing to originate from the server's IP address. Additionally, error responses from failed SMTP connections may disclose information about internal network topology and running services. This issue has been fixed in version 2.0.0-RC.3.

Referencias oficiales

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