Konqueror 3.5.5 allows remote attackers to cause a denial of service (crash) by using JavaScript to read a child iframe having an ftp:// URI.

The FTP protocol implementation in Konqueror 3.5.5 allows remote servers to force the client to connect to other servers, perform a proxied port scan, or obtain sensitive information by specifying an alternate server address in an FTP PASV response.

Visual truncation vulnerability in Konqueror 3.5.5 allows remote attackers to spoof the address bar and possibly conduct phishing attacks via a long hostname, which is truncated after a certain number of characters, as demonstrated by a phishing attack using HTTP Basic Authentication.

Konqueror 3.5.5 release 45.4 allows remote attackers to cause a denial of service (browser crash or abort) via JavaScript that matches a regular expression against a long string, as demonstrated using /(.)/.

ecma/kjshtml.cpp in KDE JavaScript (KJS), as used in Konqueror in KDE 3.5.5, allows remote attackers to cause a denial of service (crash) by accessing the content of an iframe with an ftp:// URI in the src attribute, probably due to a NULL pointer dereference.

KDE Konqueror 3.5.5 and 3.95.00, when a user accepts an SSL server certificate on the basis of the CN domain name in the DN field, regards the certificate as also accepted for all domain names in subjectAltName:dNSName fields, even though these fields cannot be examined in the product, which makes it easier for remote attackers to trick a user into accepting an invalid certificate for a spoofed web site.

The KDE HTML library (kdelibs), as used by Konqueror 3.5.5, does not properly parse HTML comments, which allows remote attackers to conduct cross-site scripting (XSS) attacks and bypass some XSS protection schemes by embedding certain HTML tags within a comment in a title tag, a related issue to CVE-2007-0478.