A cross-site scripting (XSS) vulnerability in inc/core/class.dc.core.php in the media manager in Dotclear through 2.14.1 allows remote authenticated users to upload HTML content containing an XSS payload with the file extension .ahtml.
Cross-site scripting (XSS) vulnerability in admin/media.php and admin/media_item.php in Dotclear before 2.11 allows remote authenticated users to inject arbitrary web script or HTML via the upfiletitle or media_title parameter (aka the media title).
Unrestricted file upload vulnerability in the Blog appearance in the "Install or upgrade manually" module in Dotclear through 2.10.4 allows remote authenticated super-administrators to execute arbitrary code by uploading a theme file with an zip extension, and then accessing it via unspecified vectors.