Express Invoice Security Vulnerabilities

CVE-2019-16282

In NCH Express Invoice v7.12, persistent cross site scripting (XSS) exists via the Invoices/Items/Customers/Quotes input field. An authenticated unprivileged user can add/modify the Invoices/Items/Customers fields parameter to inject arbitrary JavaScript.

CVE-2020-11560

NCH Express Invoice 7.25 allows local users to discover the cleartext password by reading the configuration file.

CVE-2020-11561

In NCH Express Invoice 7.25, an authenticated low-privilege user can enter a crafted URL to access higher-privileged functionalities such as the "Add New Item" screen.

CVE-2020-13476

NCH Express Invoice 8.06 to 8.24 is vulnerable to Reflected XSS in the Quotes List module.