Formwork is a flat file-based Content Management System (CMS). An attackers (requires administrator privilege) to execute arbitrary web scripts by modifying site options via /panel/options/site. This type of attack is suitable for persistence, affecting visitors across all pages (except the dashboard). This vulnerability is fixed in 1.13.1.

A stored cross-site scripting (XSS) vulnerability in the component /formwork/panel/dashboard of Formwork v1.12.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Page title parameter.