Parameters injection in the SyntaxHighlight extension of Mediawiki before 1.23.16, 1.27.3 and 1.28.2 might result in multiple vulnerabilities.
The getid3 library in MediaWiki before 1.24.1, 1.23.8, 1.22.15 and 1.19.23 allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack. NOTE: Related to CVE-2014-2053.
An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. In certain situations, an attempt to block a user fails after a temporary browser hang and a DBQueryDisconnectedError error message.
A security flaw was found in the way MediaWiki, a wiki engine, performed passwords management: 1) user passwords were always saved to the local MediaWiki database (regardless of external authentication extension being in use or not), 2) also previously it was possible to use old passwords for accounts non-existing in the external authentication system indefinitely.
References: [1] http://www.gossamer-threads.com/lists/wiki/mediawiki/295767
Upstream bug: [2] https://bugzilla.wikimedia.org/showbug.cgi?id=39184
Upstream patch: [3] https://bugzilla.wikimedia.org/showbug.cgi?id=39184#c1
The ReplaceText extension through 1.41 for MediaWiki has Incorrect Access Control. When a user is blocked after submitting a replace job, the job is still run, even if it may be run at a later time (due to the job queue backlog)
Mediawiki before 1.28.1 / 1.27.2 contains an unsafe use of temporary directory, where having LocalisationCache directory default to system tmp directory is insecure.
Mediawiki before 1.28.1 / 1.27.2 / 1.23.16 contains a flaw where the "Mark all pages visited" on the watchlist does not require a CSRF token.
Mediawiki before 1.28.1 / 1.27.2 / 1.23.16 contains an information disclosure flaw, where the api.log might contain passwords in plaintext.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Wikimedia Foundation MediaWiki - CSS extension allows Path Traversal.This issue affects MediaWiki - CSS extension: 1.44, 1.43, 1.39.
Eval injection vulnerability in MediaWiki 1.5.x before 1.5.3 allows remote attackers to execute arbitrary PHP code via the "user language option," which is used as part of a dynamic class name that is processed using the eval function.
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 modmime, does not properly handle files with two file extensions, such as .php.rar, which allows remote attackers to upload and execute arbitrary code.
MediaWiki before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 does not properly sanitize SVG files, which allows remote attackers to have unspecified impact via invalid XML.
Buffer overflow in php-luasandbox in the Scribuntu extension for MediaWiki before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 has unspecified impact and remote vectors.
An issue was discovered in MediaWiki through 1.36.2. A parser function related to loop control allowed for an infinite loop (and php-fpm hang) within the Loops extension because egLoopsCountLimit is mishandled. This could lead to memory exhaustion.
MediaWiki before 1.19.4 and 1.20.x before 1.20.3 allows remote attackers to cause a denial of service (application crash) by sending a specially crafted request.
MediaWiki before 1.19.4 and 1.20.x before 1.20.3 contains an error in the api.php script which allows remote attackers to obtain sensitive information.
mediawiki allows deleted text to be exposed
A security flaw was found in the way MediaWiki, a wiki engine, performed account creation capability validation for certain IP addresses (IP addresses blocked with GlobalBlocking extension were incorrectly still allowed to create new user accounts). A remote attacker could use this flaw to circumvent the GlobalBlocking account creation prevention mechanism.
References: [1] http://www.gossamer-threads.com/lists/wiki/mediawiki/295767
Upstream bug: [2] https://bugzilla.wikimedia.org/showbug.cgi?id=39824
Upstream patch against the 1.18 version: [3] https://bugzilla.wikimedia.org/showbug.cgi?id=39824#c0
Cross-Site request forgery (CSRF) vulnerability in The Wikimedia Foundation Mediawiki - RedirectManager Extension allows Cross Site Request Forgery.
This issue affects Mediawiki - RedirectManager Extension: from before 1.3.3.
Improper neutralization of special elements used in an SQL command ('SQL injection') vulnerability in The Wikimedia Foundation Mediawiki - Cargo Extension allows SQL Injection.
This issue affects Mediawiki - Cargo Extension: from before 1.43.9,1.44.6,1.45.4.
URL redirection to untrusted site ('open redirect') vulnerability in The Wikimedia Foundation Mediawiki - UrlShortener Extension allows Cross-Site Flashing.
This issue affects Mediawiki - UrlShortener Extension: from before 1.43.9, 1.44.6, 1.45.4.
Improper neutralization of input terminators vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension allows Authentication Bypass.
This issue affects Mediawiki - WikiLambda Extension: from before 1.43.9,1.44.6,1.45.4.
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Charts Extension allows Cross-Site Scripting (XSS).
This issue affects Mediawiki - Charts Extension: from before 1.43.9,1.44.6,1.45.4.
Improper neutralization of special elements used in an SQL command ('SQL injection') vulnerability in The Wikimedia Foundation Mediawiki - Cargo Extension allows SQL Injection.
This issue affects Mediawiki - Cargo Extension: from before 1.43.9,1.44.6,1.45.4.
Multiple cross-site request forgery (CSRF) vulnerabilities in MediaWiki 1.17.x before 1.17.3 and 1.18.x before 1.18.2 allow remote attackers to hijack the authentication of users with the block permission for requests that (1) block a user via a request to the Block module or (2) unblock a user via a request to the Unblock module.
Cross-site request forgery (CSRF) vulnerability in Special:Upload in MediaWiki 1.17.x before 1.17.3 and 1.18.x before 1.18.2 allows remote attackers to hijack the authentication of unspecified victims for requests that upload files.
Unrestricted file upload vulnerability in the chunk upload API in MediaWiki 1.19 through 1.19.6 and 1.20.x before 1.20.6 allows remote attackers to execute arbitrary code by uploading a file with an executable extension.
Multiple cross-site request forgery (CSRF) vulnerabilities in the (1) CreateProperty, (2) CreateTemplate, (3) CreateForm, and (4) CreateClass special pages in the SemanticForms extension for MediaWiki before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 allow remote attackers to hijack the authentication of users for requests that have unspecified impact and vectors.
Session fixation vulnerability in the CentralAuth extension for MediaWiki before 1.18.6, 1.19.x before 1.19.3, and 1.20.x before 1.20.1 allows remote attackers to hijack web sessions via the centralauthSession cookie.