Chamilo LMS, an open-source learning management system widely used in educational environments, suffers from a critical SQL Injection vulnerability identified as CVE-2025-50192. This vulnerability is classified under CWE-89, indicating improper neutralization of special elements in SQL commands. Specifically, the flaw exists in the /main/webservices/registration.soap.php script prior to version 1.11.30. An attacker can exploit this vulnerability remotely over the network without authentication or user interaction by injecting malicious SQL payloads that leverage time-based blind SQL Injection techniques. This allows attackers to infer sensitive database information by measuring response delays, potentially leading to unauthorized data disclosure or manipulation. The vulnerability has a CVSS 4.0 score of 8.8, reflecting its ease of exploitation (network vector, no privileges required) and severe impact on confidentiality and integrity. Although no public exploits have been reported yet, the vulnerability is publicly known and patched in version 1.11.30. The absence of authentication requirements and the direct exposure of the vulnerable endpoint in the web services layer increase the risk of automated exploitation attempts. This vulnerability underscores the importance of input validation and parameterized queries in web applications, especially those handling sensitive educational data.

The exploitation of CVE-2025-50192 can have severe consequences for organizations using vulnerable versions of Chamilo LMS. Attackers can remotely extract sensitive information from the underlying database, including user credentials, personal data, course content, and administrative information, compromising confidentiality. Data integrity may also be affected if attackers modify or delete records, disrupting educational services and trust. The availability impact is limited but could occur indirectly if the database is overwhelmed or corrupted. Since the vulnerability requires no authentication or user interaction, it can be exploited at scale, potentially leading to widespread data breaches. Educational institutions, training providers, and enterprises relying on Chamilo LMS may face regulatory penalties, reputational damage, and operational disruptions. The vulnerability also poses risks to students and staff whose personal information may be exposed. Given the critical nature of LMS platforms in remote education, this vulnerability could undermine educational continuity and data privacy globally.

Organizations should immediately upgrade Chamilo LMS installations to version 1.11.30 or later, where the vulnerability is patched. If immediate upgrade is not feasible, implement web application firewall (WAF) rules to detect and block SQL Injection patterns targeting the /main/webservices/registration.soap.php endpoint. Conduct thorough input validation and enforce the use of parameterized queries or prepared statements in all database interactions. Monitor web server and application logs for unusual delays or anomalies indicative of time-based SQL Injection attempts. Restrict access to the vulnerable web service endpoint to trusted IP addresses or networks where possible. Regularly audit and review LMS configurations and database permissions to minimize exposure. Educate development and security teams on secure coding practices to prevent similar injection flaws. Finally, maintain an incident response plan to quickly address any suspected exploitation.