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CVE-2026-28430

CRITICAL CVSS 4.0: 9.3 EPSS 0.12%
Updated Mar 17, 2026
Chamilo
Parameter Value
CVSS 9.3 (CRITICAL)
Affected Versions before 1.11.34
Fixed In 1.11.34
Type CWE-89 (SQL Injection)
Vendor Chamilo
Public PoC No

Chamilo LMS is a learning management system. Prior to version 1.11.34, there is an unauthenticated SQL injection vulnerability which allows remote attackers to execute arbitrary SQL commands via the custom_dates parameter. By chaining this with a predictable legacy password reset mechanism, an attacker can achieve full administrative account takeover without any prior credentials.

The vulnerability also exposes the entire database, including PII and system configurations. This issue has been patched in version 1.11.34.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Chamilo Chamilo_Lms
cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*
1.11.34