MediaWiki before 1.15.2 does not prevent wiki editors from linking to images from other web sites in wiki pages, which allows editors to obtain IP addresses and other information of wiki users by adding a link to an image on an attacker-controlled web site, aka "CSS validation issue."
thumb.php in MediaWiki before 1.15.2, when used with access-restriction mechanisms such as img_auth.php, does not check user permissions before providing scaled images, which allows remote attackers to bypass intended access restrictions and read private images via unspecified manipulations.
Cross-site scripting (XSS) vulnerability in the AJAX features in index.php in MediaWiki 1.6.x through 1.9.2, when $wgUseAjax is enabled, allows remote attackers to inject arbitrary web script or HTML via a UTF-7 encoded value of the rs parameter, which is processed by Internet Explorer.
Cross-site scripting (XSS) vulnerability in the AJAX features in index.php in MediaWiki 1.9.x before 1.9.0rc2, and 1.8.2 and earlier allows remote attackers to inject arbitrary web script or HTML via the rs parameter. NOTE: this issue might be a duplicate of CVE-2007-0177.
MediaWiki before 1.9.2 allows remote attackers to obtain sensitive information via a direct request to (1) Simple.deps.php, (2) MonoBook.deps.php, (3) MySkin.deps.php, or (4) Chick.deps.php in wiki/skins, which shows the installation path in the resulting error message.
Cross-site scripting (XSS) vulnerability in includes/Sanitizer.php in the variable handler in MediaWiki 1.6.x before r14349 allows remote attackers to inject arbitrary Javascript via unspecified vectors, possibly involving the usage of the | (pipe) character.
MediaWiki before 1.5.4 uses a hard-coded "internal placeholder string", which allows remote attackers to bypass protection against cross-site scripting (XSS) attacks and execute Javascript using inline style attributes, which are processed by Internet Explorer.
Cross-site scripting (XSS) vulnerability in MediaWiki 1.4.6 and earlier allows remote attackers to inject arbitrary web script or HTML via a parameter to the page move template.
Cross-site scripting (XSS) vulnerability in 'raw' page output mode for MediaWiki 1.3.4 and earlier allows remote attackers to inject arbitrary web script or HTML.