CVE-1999-0877 - Unavoidable Church
Description
Internet Explorer 5 allows remote attackers to read files via an ExecCommand method called on an IFRAME.
Reference
http://support.microsoft.com/default.aspx?scid=kb;[LN];Q243638 https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-042