Multiple cross-site scripting (XSS) vulnerabilities in Simple PHP Blog 0.4.5 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) entry, (2) blog_subject, and (3) blog_text parameters (involving the temp_subject variable) in (a) preview_cgi.php and (b) preview_static_cgi.php, or (4) scheme_name parameter and (5) bg_color parameters (involving the preset_name and result variables) in (c) colors.php.