Chamilo LMS, a popular learning management system, has a critical vulnerability that allows unauthenticated SQL injection. Specifically, prior to version 1.11.34, attackers can exploit this vulnerability through the custom_dates parameter, executing arbitrary SQL commands. This vulnerability is particularly severe as it can lead to full administrative account takeover without needing prior credentials. Furthermore, it exposes the entire database, which includes personally identifiable information (PII) and sensitive system configurations. Organizations using Chamilo LMS should take immediate action to address this issue.
The CVSS score for this vulnerability is 9.3, indicating a critical severity level. This high score is attributed to the low attack complexity and the potential for attackers to leverage the vulnerability from a network location, resulting in high confidentiality and integrity impacts. Given that the vulnerability has been publicly disclosed, the urgency for organizations to patch their systems cannot be overstated.
Organizations are advised to prioritize patching Chamilo LMS to version 1.11.34, where this vulnerability has been addressed. Failure to do so could lead to serious consequences, including data breaches and unauthorized access to sensitive information.
Additionally, given the nature of the vulnerability, it is crucial for security teams to implement monitoring and detection strategies to identify any signs of exploitation attempts. Regular security assessments and penetration testing should also be conducted to ensure the ongoing security of the system.
Vulnerability Details
The vulnerability allows remote attackers to execute arbitrary SQL commands via the custom_dates parameter in Chamilo LMS versions prior to 1.11.34. It is classified as a SQL injection vulnerability, specifically CWE-89. The vulnerability was published on March 16, 2026, and affects all versions of Chamilo LMS prior to the patched version.
Technical Analysis
The root cause of the vulnerability lies in the improper handling of user input in the custom_dates parameter, which allows for SQL commands to be injected into database queries. The attack vector is through network access, and the attack complexity is low, meaning no special conditions are required for exploitation.
No privileges are required to exploit this vulnerability, and user interaction is not needed. The impacts on confidentiality and integrity are high, meaning attackers can compromise sensitive data and potentially manipulate the database.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to sensitive information, including PII and system configurations. The blast radius of this vulnerability is significant, as it can affect all users of the Chamilo LMS platform. Organizations must assess their risk posture and prioritize remediation efforts to mitigate potential damage.
Given the CVSS score of 9.3 and the potential for exploitation, organizations should address this vulnerability in their immediate patching cycle. The urgency is critical, and failure to remediate could result in severe legal and financial consequences.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of Chamilo LMS prior to version 1.11.34 are affected by this vulnerability. Organizations must ensure that they upgrade their systems to this version or later to mitigate the risk.
Mitigation & Remediation
To remediate this vulnerability, organizations should upgrade to Chamilo LMS version 1.11.34 or later. If a patch is unavailable, organizations should consider implementing additional security measures such as web application firewalls and input validation on user-supplied data. Ongoing monitoring should be conducted to detect any anomalies that may indicate exploitation attempts. For more detailed security testing, organizations can consider utilizing penetration testing services.
Detection Guidance
Organizations should monitor for unusual SQL query patterns in their logs, particularly those that involve the custom_dates parameter. Behavioral anomalies associated with database access should also be tracked, and any unauthorized access attempts should trigger alerts for further investigation.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its potential to expose databases containing sensitive information. Organizations must learn from this incident and implement robust security practices to prevent similar vulnerabilities in the future. Regular security audits and code reviews should be a standard part of the development lifecycle to ensure the integrity of applications.
By following security best practices and engaging in proactive security measures, organizations can significantly reduce their risk exposure. For comprehensive guidance on security assessments, organizations can refer to resources such as the penetration testing methodology guide.
Furthermore, the evolving landscape of web application security necessitates continuous adaptation and learning from past vulnerabilities. Incorporating lessons learned from incidents like this can inform better security posture and resilience against future threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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