Vulnerability in Quick.CMS software

CERT Polska has received a report about vulnerability in OpenSolution Quick.CMS software and participated in coordination of its disclosure.

The vulnerabilityCVE-2026-33385: A Blind SQL injection vulnerability has been identified in Quick.CMS. Improper neutralization of input provided by a high-privileged user into multiple fields in administration panel allows for Blind SQL Injection attacks.

The vendor states that this administration panel already allows for significant modification capabilities. The SQL injection vulnerability primarily enables bypassing front-end validation controls and potential database destruction. Given the trust model in which this application is designed to be administered, remediation of this issue was not deemed necessary by the vendor.

This vulnerability has been found in version 6.8, but other versions might also be vulnerable.

We thank Jakub Lipiński for the responsible vulnerability report.