CVE-2026-46682

8.5

BigBlueButton · BigBlueButton

BigBlueButton contains an SQL Injection vulnerability that could allow an authenticated user to perform unauthorized database operations.

Executive summary

An SQL Injection vulnerability in BigBlueButton, an open-source virtual classroom platform, could allow authenticated attackers to compromise sensitive database information.

Vulnerability

The application is vulnerable to SQL Injection, categorized as CWE-89, which occurs due to improper neutralization of special elements within SQL commands. The attack requires the user to be authenticated to the platform.

Business impact

Successful exploitation of this SQL injection vulnerability could allow an attacker to execute arbitrary database queries, potentially leading to the theft of user data, classroom credentials, or other sensitive information stored within the backend database. With a CVSS score of 8.5, this high-severity issue necessitates urgent attention to protect the integrity and confidentiality of the virtual classroom environment.

Remediation

Immediate Action: Update the BigBlueButton platform to version 3.0.23 or newer to address this vulnerability.

Proactive Monitoring: Review database access logs for anomalous query patterns, such as unexpected syntax or large data extractions, which may indicate attempted exploitation.

Compensating Controls: Utilize a Web Application Firewall (WAF) with SQL injection protection rules enabled to filter malicious payloads directed at the application.

Exploitation status

Public Exploit Available: Unknown.

Analyst recommendation

The risk to the confidentiality of the virtual classroom data is high. All administrators should verify their current deployment version and perform the update to 3.0.23 immediately to ensure the security of the application.

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