WordPress vulnerabilities

WordPress 2.7.1 places the username of a post's author in an HTML comment, which allows remote attackers to obtain sensitive information by reading the HTML source.

The forgotten mail interface in WordPress and WordPress MU before 2.8.1 exhibits different behavior for a password request depending on whether the user account exists, which allows remote attackers to enumerate valid usernames. NOTE: the vendor reportedly disputes the significance of this issue, indicating that the behavior exists for "user convenience."

WordPress and WordPress MU before 2.8.1 exhibit different behavior for a failed login attempt depending on whether the user account exists, which allows remote attackers to enumerate valid usernames. NOTE: the vendor reportedly disputes the significance of this issue, indicating that the behavior exists for "user convenience."

wp-admin/admin.php in WordPress and WordPress MU before 2.8.1 does not require administrative authentication to access the configuration of a plugin, which allows remote attackers to specify a configuration file in the page parameter to obtain sensitive information or modify this file, as demonstrated by the (1) collapsing-archives/options.txt, (2) akismet/readme.txt, (3) related-ways-to-take-action/options.php, (4) wp-security-scan/securityscan.php, and (5) wp-ids/ids-admin.php files. NOTE: this can be leveraged for cross-site scripting (XSS) and denial of service.

wp-admin/upgrade.php in WordPress, probably 2.6.x, allows remote attackers to upgrade the application, and possibly cause a denial of service (application outage), via a direct request.

Open redirect vulnerability in wp-admin/upgrade.php in WordPress, probably 2.6.x, allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the backto parameter.

wp-admin/options.php in WordPress MU before 1.3.2, and WordPress 2.3.2 and earlier, does not properly validate requests to update an option, which allows remote authenticated users with manage_options and upload_files capabilities to execute arbitrary code by uploading a PHP script and adding this script's pathname to active_plugins.

Cross-site scripting (XSS) vulnerability in the self_link function in in the RSS Feed Generator (wp-includes/feed.php) for WordPress before 2.6.5 allows remote attackers to inject arbitrary web script or HTML via the Host header (HTTP_HOST variable).

WordPress 2.6.3 relies on the REQUEST superglobal array in certain dangerous situations, which makes it easier for remote attackers to conduct delayed and persistent cross-site request forgery (CSRF) attacks via crafted cookies, as demonstrated by attacks that (1) delete user accounts or (2) cause a denial of service (loss of application access). NOTE: this issue relies on the presence of an independent vulnerability that allows cookie injection.

The _httpsrequest function (Snoopy/Snoopy.class.php) in Snoopy 1.2.3 and earlier, as used in (1) ampache, (2) libphp-snoopy, (3) mahara, (4) mediamate, (5) opendb, (6) pixelpost, and possibly other products, allows remote attackers to execute arbitrary commands via shell metacharacters in https URLs.

Directory traversal vulnerability in the get_category_template function in wp-includes/theme.php in WordPress 2.3.3 and earlier, and 2.5, allows remote attackers to include and possibly execute arbitrary PHP files via the cat parameter in index.php. NOTE: some of these details are obtained from third party information.

WordPress before 2.6.2 does not properly handle MySQL warnings about insertion of username strings that exceed the maximum column width of the user_login column, and does not properly handle space characters when comparing usernames, which allows remote attackers to change an arbitrary user's password to a random value by registering a similar username and then requesting a password reset, related to a "SQL column truncation vulnerability." NOTE: the attacker can discover the random password by also exploiting CVE-2008-4107.

The (1) get_edit_post_link and (2) get_edit_comment_link functions in wp-includes/link-template.php in WordPress before 2.6.1 do not force SSL communication in the intended situations, which might allow remote attackers to gain administrative access by sniffing the network for a cookie.

Cross-site scripting (XSS) vulnerability in WordPress before 2.6, SVN development versions only, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Unrestricted file upload vulnerability in WordPress 2.5.1 and earlier might allow remote authenticated administrators to upload and execute arbitrary PHP files via the Upload section in the Write Tabs area of the dashboard.

wp-includes/vars.php in Wordpress before 2.2.3 does not properly extract the current path from the PATH_INFO ($PHP_SELF), which allows remote attackers to bypass intended access restrictions for certain pages.

Cross-site scripting (XSS) vulnerability in WordPress 2.5 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

The cookie authentication method in WordPress 2.5 relies on a hash of a concatenated string containing USERNAME and EXPIRY_TIME, which allows remote attackers to forge cookies by registering a username that results in the same concatenated string, as demonstrated by registering usernames beginning with "admin" to obtain administrator privileges, aka a "cryptographic splicing" issue. NOTE: this vulnerability exists because of an incomplete fix for CVE-2007-6013.

Multiple cross-site scripting (XSS) vulnerabilities in WordPress 2.3.2 allow remote attackers to inject arbitrary web script or HTML via the (1) inviteemail parameter in an invite action to wp-admin/users.php and the (2) to parameter in a sent action to wp-admin/invites.php.

The XML-RPC implementation (xmlrpc.php) in WordPress before 2.3.3, when registration is enabled, allows remote attackers to edit posts of other blog users via unknown vectors.

Multiple directory traversal vulnerabilities in WordPress 2.0.11 and earlier allow remote attackers to read arbitrary files via a .. (dot dot) in (1) the page parameter to certain PHP scripts under wp-admin/ or (2) the import parameter to wp-admin/admin.php, as demonstrated by discovering the full path via a request for the \..\..\wp-config pathname; and allow remote attackers to modify arbitrary files via a .. (dot dot) in the file parameter to wp-admin/templates.php.

WordPress 2.0.11 and earlier allows remote attackers to obtain sensitive information via an empty value of the page parameter to certain PHP scripts under wp-admin/, which reveals the path in various error messages.

Directory traversal vulnerability in wp-db-backup.php in WordPress 2.0.3 and earlier allows remote attackers to read arbitrary files, delete arbitrary files, and cause a denial of service via a .. (dot dot) in the backup parameter in a wp-db-backup.php action to wp-admin/edit.php. NOTE: this might be the same as CVE-2006-5705.1.

Cross-site scripting (XSS) vulnerability in wp-db-backup.php in WordPress 2.0.11 and earlier, and possibly 2.1.x through 2.3.x, allows remote attackers to inject arbitrary web script or HTML via the backup parameter in a wp-db-backup.php action to wp-admin/edit.php.

Multiple cross-site scripting (XSS) vulnerabilities in WordPress 2.0.9 and earlier allow remote attackers to inject arbitrary web script or HTML via the popuptitle parameter to (1) wp-admin/post.php or (2) wp-admin/page-new.php.

WordPress 2.2.x and 2.3.x allows remote attackers to obtain sensitive information via an invalid p parameter in an rss2 action to the default URI, which reveals the full path and the SQL database structure.

SQL injection vulnerability in wp-includes/query.php in WordPress 2.3.1 and earlier allows remote attackers to execute arbitrary SQL commands via the s parameter, when DB_CHARSET is set to (1) Big5, (2) GBK, or possibly other character set encodings that support a "\" in a multibyte character.

Wordpress 1.5 through 2.3.1 uses cookie values based on the MD5 hash of a password MD5 hash, which allows attackers to bypass authentication by obtaining the MD5 hash from the user database, then generating the authentication cookie from that hash.

Cross-site scripting (XSS) vulnerability in wp-admin/edit-post-rows.php in WordPress 2.3 allows remote attackers to inject arbitrary web script or HTML via the posts_columns array parameter.

Cross-site scripting (XSS) vulnerability in wp-register.php in WordPress 2.0 allows remote attackers to inject arbitrary web script or HTML via the user_login parameter.

Cross-site scripting (XSS) vulnerability in wp-register.php in WordPress 2.0 and 2.0.1 allows remote attackers to inject arbitrary web script or HTML via the user_email parameter.

Multiple SQL injection vulnerabilities in Wordpress before 2.2.3 and Wordpress multi-user (MU) before 1.2.5a allow remote attackers to execute arbitrary SQL commands via the post_type parameter to the pingback.extensions.getPingbacks method in the XMLRPC interface, and other unspecified parameters related to "early database escaping" and missing validation of "query string like parameters."

wp-admin/admin-functions.php in Wordpress before 2.2.3 and Wordpress multi-user (MU) before 1.2.5a does not properly verify the unfiltered_html privilege, which allows remote attackers to conduct cross-site scripting (XSS) attacks via modified data to (1) post.php or (2) page.php with a no_filter field.

SQL injection vulnerability in options.php in WordPress 2.2.1 allows remote authenticated administrators to execute arbitrary SQL commands via the page_options parameter to (1) options-general.php, (2) options-writing.php, (3) options-reading.php, (4) options-discussion.php, (5) options-privacy.php, (6) options-permalink.php, (7) options-misc.php, and possibly other unspecified components.

Multiple cross-site scripting (XSS) vulnerabilities in WordPress 2.2.1 allow remote authenticated administrators to inject arbitrary web script or HTML via (1) the Options Database Table in the Admin Panel, accessed through options.php; or (2) the opml_url parameter to link-import.php. NOTE: this might not cross privilege boundaries in some configurations, since the Administrator role has the unfiltered_html capability.

Cross-site scripting (XSS) vulnerability in the Temporary Uploads editing functionality (wp-admin/includes/upload.php) in WordPress 2.2.1, allows remote attackers to inject arbitrary web script or HTML via the style parameter to wp-admin/upload.php.

WordPress before 2.2.2 allows remote attackers to redirect visitors to other websites and potentially obtain sensitive information via (1) the _wp_http_referer parameter to wp-pass.php, related to the wp_get_referer function in wp-includes/functions.php; and possibly other vectors related to (2) wp-includes/pluggable.php and (3) the wp_nonce_ays function in wp-includes/functions.php.

Unrestricted file upload vulnerability in (1) wp-app.php and (2) app.php in WordPress 2.2.1 and WordPress MU 1.2.3 allows remote authenticated users to upload and execute arbitrary PHP code via unspecified vectors, possibly related to the wp_postmeta table and the use of custom fields in normal (non-attachment) posts. NOTE: this issue reportedly exists because of an incomplete fix for CVE-2007-3543.

Unrestricted file upload vulnerability in WordPress before 2.2.1 and WordPress MU before 1.2.3 allows remote authenticated users to upload and execute arbitrary PHP code by making a post that specifies a .php filename in the _wp_attached_file metadata field; and then sending this file's content, along with its post_ID value, to (1) wp-app.php or (2) app.php.

Cross-site scripting (XSS) vulnerability in blogroll.php in the cordobo-green-park theme for WordPress allows remote attackers to inject arbitrary web script or HTML via the PHP_SELF portion of a URI.

Cross-site scripting (XSS) vulnerability in 404.php in the Vistered-Little theme for WordPress allows remote attackers to inject arbitrary web script or HTML via the URI (REQUEST_URI) that accesses index.php. NOTE: this can be leveraged for PHP code execution in an administrative session.

Cross-site scripting (XSS) vulnerability in searchform.php in the AndyBlue theme before 20070607 for WordPress allows remote attackers to inject arbitrary web script or HTML via the PHP_SELF portion of a URI to index.php. NOTE: this can be leveraged for PHP code execution in an administrative session.

Cross-site scripting (XSS) vulnerability in functions.php in the default theme in WordPress 2.2 allows remote authenticated administrators to inject arbitrary web script or HTML via the PATH_INFO (REQUEST_URI) to wp-admin/themes.php, a different vulnerability than CVE-2007-1622. NOTE: this might not cross privilege boundaries in some configurations, since the Administrator role has the unfiltered_html capability.

SQL injection vulnerability in xmlrpc.php in WordPress 2.2 allows remote authenticated users to execute arbitrary SQL commands via a parameter value in an XML RPC wp.suggestCategories methodCall, a different vector than CVE-2007-1897.

SQL injection vulnerability in wp-admin/admin-ajax.php in WordPress before 2.2 allows remote attackers to execute arbitrary SQL commands via the cookie parameter.

Cross-site scripting (XSS) vulnerability in sidebar.php in WordPress, when custom 404 pages that call get_sidebar are used, allows remote attackers to inject arbitrary web script or HTML via the query string (PHP_SELF), a different vulnerability than CVE-2007-1622.

SQL injection vulnerability in xmlrpc (xmlrpc.php) in WordPress 2.1.2, and probably earlier, allows remote authenticated users to execute arbitrary SQL commands via a string parameter value in an XML RPC mt.setPostCategories method call, related to the post_id variable.

Cross-site scripting (XSS) vulnerability in wp-includes/general-template.php in WordPress before 20070309 allows remote attackers to inject arbitrary web script or HTML via the year parameter in the wp_title function.

xmlrpc (xmlrpc.php) in WordPress 2.1.2, and probably earlier, allows remote authenticated users with the contributor role to bypass intended access restrictions and invoke the publish_posts functionality, which can be used to "publish a previously saved post."

Cross-site scripting (XSS) vulnerability in an mt import in wp-admin/admin.php in WordPress 2.1.2 allows remote authenticated administrators to inject arbitrary web script or HTML via the demo parameter. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information. NOTE: another researcher disputes this issue, stating that this is legitimate functionality for administrators. However, it has been patched by at least one vendor