Cross-site scripting (XSS) vulnerability in LiveJournal 1.0 and 1.1 allows remote attackers to execute Javascript as other users via the stylesheet, which does not strip the semicolon or parentheses, as demonstrated using a background:url.

Validate-before-filter vulnerability in cleanhtml.pl 1.129 in LiveJournal CVS before Dec 7 2005, when the cleancss option is enabled, allows remote attackers to conduct cross-site scripting (XSS) attacks via a "\" (backslash) within a "javascript" scheme in a style property (such as "javas\cript"), which bypasses the "javascript" check before the "\" is stripped and then rendered in web browsers that allow scripting in style sheets.

cleanhtml.pl 1.129 in LiveJournal CVS before Dec 13 2005 allows remote attackers to inject scripting languages via the XSL namespace in XML, via vectors such as customview.cgi.