Cross-site scripting (XSS) vulnerability in MediaWiki before 1.16.2 allows remote attackers to inject arbitrary web script or HTML via crafted Cascading Style Sheets (CSS) comments, aka "CSS injection vulnerability."

MediaWiki before 1.16.1, when user or site JavaScript or CSS is enabled, allows remote attackers to conduct clickjacking attacks via unspecified vectors.

MediaWiki before 1.15.3, and 1.6.x before 1.16.0beta2, does not properly handle a correctly authenticated but unintended login attempt, which makes it easier for remote authenticated users to conduct phishing attacks by arranging for a victim to login to the attacker's account and then execute a crafted user script, related to a "login CSRF" 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.

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."

Cross-site request forgery (CSRF) vulnerability in the Special:Import feature in MediaWiki 1.3.0 through 1.6.10, 1.12.x before 1.12.2, and 1.13.x before 1.13.3 allows remote attackers to perform unspecified actions as authenticated users via unknown vectors.

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.

Unspecified vulnerability in "edit submission handling" for MediaWiki 1.4.x before 1.4.10 and 1.3.x before 1.3.16 allows remote attackers to cause a denial of service (corruption of the previous submission) via a crafted URL.

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 MediaWiki before 1.4.5 allows remote attackers to inject arbitrary web script via HTML attributes in page templates.

Multiple cross-site scripting (XSS) vulnerabilities in MediaWiki 1.3.x before 1.3.11 and 1.4 beta before 1.4 rc1 allow remote attackers to inject arbitrary web script.

Directory traversal vulnerability in MediaWiki 1.3.x before 1.3.11 and 1.4 beta before 1.4 rc1 allows remote attackers to delete arbitrary files or determine file existence via a parameter related to image deletion.

Cross-site scripting (XSS) vulnerability in MediaWiki before 1.4.2, when using HTML Tidy ($wgUseTidy), allows remote attackers to inject arbitrary web script or HTML via unknown vectors.

Cross-site request forgery (CSRF) vulnerability in MediaWiki 1.3.x before 1.3.11 and 1.4 beta before 1.4 rc1 allows remote attackers to perform unauthorized actions as authenticated MediaWiki users.

MediaWiki 1.3.8 and earlier, when used with Apache mod_mime, does not properly handle files with two file extensions, such as .php.rar, which allows remote attackers to upload and execute arbitrary code.