Server-Side Request Forgery (SSRF) in Chamilo LMS - CVE-2026-61615
Published: August 4, 2026
Vulnerability identifier: #VU140913
CSH Severity: Low
CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:L/SC:L/SI:N/SA:N]
CVE-ID: CVE-2026-61615
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform server-side request forgery and disclose sensitive information.
The vulnerability exists due to server-side request forgery in the legacy certificate generation path in public/main/inc/lib/certificate.lib.php when rendering certificate HTML with mPDF. A remote privileged user can modify a certificate template to include a crafted URL and trigger server-side HTTP requests to disclose sensitive information.
The issue is persistent once a malicious template is planted, and any user generating a certificate can trigger the server-side request. Cloud metadata endpoints and internal network services may be reachable through the vulnerable request behavior.
Affected software
Chamilo LMS
How to mitigate CVE-2026-61615
Install security update from vendor's website.
Chamilo LMS - update to 2.0.3