Running Konqueror 3.5.7 with Javascript in 64-bit OpenBSD 4.2 enabled
exposes two security flaws in the KDE/OpenBSD combo:

1) After exiting KDE, the color of text displayed on the console often
has been changed from white to yellow. This applies to multiple users.
Rebooting is the only way I currently know of to restore the white text
color.

2) Downloading from http://www.picmium.com fails after about the 2nd
download. The problem is at that point internet access has been
disabled. This problem occurs for multiple users. Ping then no longer
works. This problem also is fixed by rebooting.

These problems are very repeatable. They so far have never occurred when
I have disabled Javascript before surfing with Konqueror.