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PatchSiren cyber security CVE debrief

CVE-2021-47930 Balbooa CVE debrief

CVE-2021-47930 is a high-severity SQL injection issue affecting Balbooa Joomla Forms Builder 2.0.6. According to the supplied description, an unauthenticated attacker can send crafted POST requests to the com_baforms component and supply malicious JSON in the 'id' field to execute arbitrary SQL queries and extract sensitive database information. Because no authentication is required and the attack surface is network-reachable, the issue should be treated as urgent for any exposed Joomla deployment running the affected component.

Vendor
Balbooa
Product
Unknown
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-10
Original CVE updated
2026-05-10
Advisory published
2026-05-10
Advisory updated
2026-05-10

Who should care

Joomla administrators, application owners, and security teams responsible for Balbooa Joomla Forms Builder deployments, especially sites still running version 2.0.6 or otherwise exposing the com_baforms component to the internet.

Technical summary

The vulnerability is described as an unauthenticated SQL injection in the form submission handler for Balbooa Joomla Forms Builder 2.0.6. The relevant weakness is CWE-89. The supplied NVD metadata classifies the issue as network exploitable with no privileges required and no user interaction. The attack path described in the source corpus uses POST requests to com_baforms with malicious JSON in the 'id' parameter, which may permit arbitrary SQL execution and database data extraction.

Defensive priority

High. The combination of unauthenticated access, remote reachability, and potential database disclosure makes this a priority remediation item for any affected Joomla instance.

Recommended defensive actions

  • Identify whether Balbooa Joomla Forms Builder 2.0.6 is installed anywhere in your environment.
  • If the component is present, apply the vendor's remediation or upgrade guidance as soon as it is available; if no fixed version is available, disable or remove the component until it can be safely updated.
  • Restrict internet exposure to Joomla administration and application endpoints where possible.
  • Review web and application logs for suspicious POST requests targeting com_baforms, especially requests carrying unexpected JSON content in the 'id' field.
  • Assume database secrets or application data may be exposed if exploitation is suspected, and rotate credentials or tokens as part of incident response.
  • Validate backups and restore procedures before making changes, so you can recover quickly if the component needs to be removed or replaced.

Evidence notes

The source corpus identifies the issue in Balbooa Joomla Forms Builder 2.0.6, describes it as an unauthenticated SQL injection, and maps it to CWE-89. NVD metadata in the supplied source item marks the vulnerability as 'Received' and provides a CVSS v4.0 vector indicating network access, no privileges required, and no user interaction. Timing context in this debrief uses the supplied CVE published/modified timestamp of 2026-05-10T13:16:29.163Z; no other dates are inferred.

Official resources

This debrief uses the CVE published/modified timestamp provided in the corpus (2026-05-10T13:16:29.163Z) for timing context. The source metadata also shows NVD status 'Received' and references public disclosure materials; no exploit steps,