
Researcher from CyStack have found CVE-2026-57259 vulnerability - XXE in Foxit Reader, the PDF reader with 700M+ users. Open a malicious PDF. That's all it takes to read any file on the victim's machine. For more vulnerability disclosures, go to https://bit.ly/cystack-disclosures https://t.co/USrUuOSNX3
Post summary
The post announces a new XXE vulnerability (CVE‑2026‑57259) in Foxit Reader, indicating that merely opening a malicious PDF can read arbitrary files on a victim’s machine, though it offers no patch, exploit code or evidence of active exploitation.
