Internet Explorer 5.0 through 5.5 allows remote attackers to read arbitrary files from the client via the INPUT TYPE element in an HTML form, aka the "File Upload via Form" vulnerability.
Internet Explorer before 5.5 forwards cached user credentials for a secure web site to insecure pages on the same web site, which could allow remote attackers to obtain the credentials by monitoring connections to the web server, aka the "Cached Web Credentials" vulnerability.
Internet Explorer 5.x does not warn a user before opening a Microsoft Access database file that is referenced within ActiveX OBJECT tags in an HTML document, which could allow remote attackers to execute arbitrary commands, aka the "IE Script" vulnerability.
Internet Explorer 4.x and 5.x allows remote attackers to execute arbitrary commands via a buffer overflow in the ActiveX parameter parsing capability, aka the "Malformed Component Attribute" vulnerability.
Internet Explorer 4.0 and 5.0 allows a malicious web site to obtain client cookies from another domain by including that domain name and escaped characters in a URL, aka the "Unauthorized Cookie Access" vulnerability.
Internet Explorer 4.x and 5.x allows remote web servers to access files on the client that are outside of its security domain, aka the "Image Source Redirect" vulnerability.
Internet Explorer 5 does not modify the security zone for a document that is being loaded into a window until after the document has been loaded, which could allow remote attackers to execute Javascript in a different security context while the document is loading.
Internet Explorer 4 treats a 32-bit number ("dotless IP address") in the a URL as the hostname instead of an IP address, which causes IE to apply Local Intranet Zone settings to the resulting web page, allowing remote malicious web servers to conduct unauthorized activities by using URLs that contain the dotless IP address for their server.
Buffer overflow in the Window.External function in the JScript Scripting Engine in Internet Explorer 4.01 SP1 and earlier allows remote attackers to execute arbitrary commands via a malicious web page.
Buffer overflow in Internet Explorer 4.01 and earlier allows remote attackers to execute arbitrary commands via a long URL with the "mk:" protocol, aka the "MK Overrun security issue."