Web developer Cefn Hoile reported that sites which allow users to embed third-party stylesheets are vulnerable to script injection attacks using XBL bindings. While this behavior was documented previously, it was determined that this particular risk was not well-understood by some websites. To mitigate this risk Mozilla added a restriction that requires XBL bindings to come from the same origin as the bound document.
This issue has been addressed in following products: Red Hat Enterprise Linux 4 Red Hat Enterprise Linux 5 Via RHSA-2009:0436 https://rhn.redhat.com/errata/RHSA-2009-0436.html
xulrunner-1.9.0.9-1.fc9, firefox-3.0.9-1.fc9, epiphany-extensions-2.22.1-10.fc9, epiphany-2.22.2-10.fc9, blam-1.8.5-8.fc9.1, chmsee-1.0.1-11.fc9, devhelp-0.19.1-11.fc9, evolution-rss-0.1.0-10.fc9, galeon-2.0.7-9.fc9, gnome-python2-extras-2.19.1-26.fc9, gnome-web-photo-0.3-20.fc9, google-gadgets-0.10.5-5.fc9, gtkmozembedmm-1.4.2.cvs20060817-28.fc9, kazehakase-0.5.6-4.fc9.1, Miro-2.0.3-3.fc9, mozvoikko-0.9.5-9.fc9, mugshot-1.2.2-8.fc9, ruby-gnome2-0.17.0-8.fc9, totem-2.23.2-14.fc9, yelp-2.22.1-11.fc9 has been pushed to the Fedora 9 stable repository. If problems still persist, please make note of it in this bug report.
xulrunner-1.9.0.9-1.fc10, firefox-3.0.9-1.fc10, epiphany-extensions-2.24.0-7.fc10, epiphany-2.24.3-5.fc10, blam-1.8.5-9.fc10, devhelp-0.22-7.fc10, galeon-2.0.7-9.fc10, gecko-sharp2-0.13-7.fc10, gnome-python2-extras-2.19.1-29.fc10, gnome-web-photo-0.3-17.fc10, google-gadgets-0.10.5-5.fc10, kazehakase-0.5.6-4.fc10.1, Miro-2.0.3-3.fc10, mozvoikko-0.9.5-9.fc10, mugshot-1.2.2-8.fc10, pcmanx-gtk2-0.3.8-8.fc10, perl-Gtk2-MozEmbed-0.08-5.fc10.2, ruby-gnome2-0.18.1-5.fc10.1, yelp-2.24.0-8.fc10 has been pushed to the Fedora 10 stable repository. If problems still persist, please make note of it in this bug report.
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Via RHSA-2009:1126 https://rhn.redhat.com/errata/RHSA-2009-1126.html