SEPTEMBER 7, 2026
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Case File

CVE-2026-39878

CRITICAL · CVSS 9.3 EPSS 0.24% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-20 · Last synced 2026-08-19

CyberRota Analysis

AI-Generated

Chamilo LMS versions up to 1.11.38 are vulnerable to a stored cross-site scripting flaw in the user registration form, enabling unauthenticated attackers to execute arbitrary JavaScript in an administrator's browser session. This vulnerability can lead to complete takeover of the platform's admin account. Organizations using affected versions should prioritize patching to version 1.11.40 or later to mitigate this critical risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-39878
Severity
CRITICAL
CVSS
9.3
EPSS
0.24%
Java

Original NVD Description

Chamilo LMS versions 1.11.38 and earlier contain a stored cross-site scripting vulnerability in the user registration form that allows any unauthenticated attacker to execute arbitrary JavaScript in an administrator's browser session, leading to full platform admin account takeover. This has been patched in 1.11.40.