CVE-2026-57532
HighCVSS 8.8Summary
Malicious HTML content contained in the layout specification of a PDF could be executed when the PDF editor is opened in the browser. This allows one backend user to inject JavaScript into the browser context of another backend user.
Risk Assessment
The risk involves the potential execution of malicious JavaScript code, which could lead to data theft or session hijacking. This threat affects backend users who open the PDF editor in the browser.
Recommendation
It is recommended to implement a stronger Content-Security-Policy for pages related to PDF editing to minimize the risk of code injection. A security audit of the backend application should also be conducted.
Original NVD description (English source)
Malicious HTML content contained in the layout specification of a PDF ticket or badge layout was executed when the PDF editor is opened in the browser. This could allow one backend user to inject JavaScript into the browser context of another backend user. Due to requirements of the PDF rendering and editing libraries used, this is one of the few pages in our backend that do not have a strong Content-Security-Policy that would render this capability useless for most scenarios.