SQL injection vulnerability in admin/categories.php in Dotclear before 2.6.3 allows remote authenticated users with the manage categories permission to execute arbitrary SQL commands via the categories_order parameter.

Multiple cross-site scripting (XSS) vulnerabilities in Dotclear before 2.4.2 allow remote attackers to inject arbitrary web script or HTML via the (1) login_data parameter to admin/auth.php; (2) nb parameter to admin/blogs.php; (3) type, (4) sortby, (5) order, or (6) status parameters to admin/comments.php; or (7) page parameter to admin/plugin.php.

The updateFile function in inc/core/class.dc.media.php in the Media Manager in Dotclear before 2.2.3 does not properly restrict pathnames, which allows remote authenticated users to upload and execute arbitrary PHP code via the media_path or media_file parameter. NOTE: some of these details are obtained from third party information.

Cross-site scripting (XSS) vulnerability in the administrative interface in Dotclear before 2.1.5 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Unrestricted file upload vulnerability in ecrire/images.php in Dotclear 1.2.7.1 and earlier allows remote authenticated users to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in images.

DotClear allows remote attackers to obtain sensitive information via a direct request for (1) edit_cat.php, (2) index.php, (3) edit_link.php in ecrire/tools/blogroll/; (4) syslog/index.php, (5) thememng/index.php, (6) toolsmng/index.php, (7) utf8convert/index.php in /ecrire/tools/; (8) /ecrire/inc/connexion.php and (9) /inc/session.php; (10) class.blog.php, (11) class.blogcomment.php, (12) and class.blogpost.php in /inc/classes/; (13) append.php, (14) class.xblog.php, (15) class.xblogcomment.php, and (16) class.xblogpost.php in /layout/; (17) form.php, (18) list.php, (19) post.php, or (20) template.php in /themes/default/, which reveal the installation path in error messages.

PHP remote file inclusion vulnerability in layout/prepend.php in DotClear 1.2.4 and earlier allows remote attackers to execute arbitrary PHP code via a FTP URL in the blog_dc_path parameter, which passes file_exists() and is_dir() tests on PHP 5.