CVE-2026-1591

Foxit PDF Editor Cloud (pdfonline) contains a stored cross-site scripting vulnerability in the file upload feature. A malicious username is embedded into the upload file list without proper escaping, allowing arbitrary JavaScript execution when the list is displayed.

This issue affects pdfonline.foxit.com: before 2026‑02‑03.

More information : https://www.foxit.com/support/security-bulletins.html