CVEs-PoC/2021/CVE-2021-23953.md

CVE-2021-23953

Description

If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.

POC

Reference

• https://bugzilla.mozilla.org/show_bug.cgi?id=1683940
• https://bugzilla.mozilla.org/show_bug.cgi?id=1683940

Github

• https://github.com/0xCyberY/CVE-T4PDF
• https://github.com/ARPSyndicate/cvemon