This affects versions of the package opencart/opencart from 0.0.0. An SQL Injection issue was identified in the Divido payment extension for OpenCart, which is included by default in version 3.0.3.9. As an anonymous unauthenticated user, if the Divido payment module is installed (it does not have to be enabled), it is possible to exploit SQL injection to gain unauthorised access to the backend database. For any site which is vulnerable, any unauthenticated user could exploit this to dump the entire OpenCart database, including customer PII data.
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.