KDE Konqueror for KDE 3.1.2 and earlier does not remove authentication credentials from URLs of the "user:password@host" form in the HTTP-Referer header, which could allow remote web sites to steal the credentials for pages that link to the sites.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A411
http://www.turbolinux.com/security/TLSA-2003-45.txt
http://www.redhat.com/support/errata/RHSA-2003-236.html
http://www.redhat.com/support/errata/RHSA-2003-235.html
http://www.mandriva.com/security/advisories?name=MDKSA-2003:079
http://www.kde.org/info/security/advisory-20030729-1.txt
http://www.debian.org/security/2003/dsa-361
http://marc.info/?l=bugtraq&m=105986238428061&w=2
http://lists.grok.org.uk/pipermail/full-disclosure/2003-July/007300.html
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000747