XML External Entity injection in Chamilo LMS - #VU137296
Published: July 10, 2026
Vulnerability identifier: #VU137296
CSH Severity: Low
CVSS v4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-611
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to gain access to sensitive information.
The vulnerability exists due to insufficient validation of user-supplied XML input in the BigBlueButton plugin. A remote administrator can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.
Successful exploitation of the vulnerability may allow an attacker to perform Server-Side Request Forgery (SSRF) attacks.
Affected software
Chamilo LMS
Remediation
Install updates from vendor's website.
Chamilo LMS - update to 2.0.3