Summary
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in MediaWiki ausnutzen, um SQL-Injection- und XSS-Angriffe durchzuführen, Sicherheitsmechanismen zu umgehen, vertrauliche Informationen offenzulegen oder sich unbefugt höhere Berechtigungen zu verschaffen.
Product
MediaWiki ist ein freies Wiki, das ursprünglich für den Einsatz auf Wikipedia entwickelt wurde.
Vulnerabilities 42
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Critical 9.8
SecurePoll: Multiple locations vulnerable to Cross-Site Scripting (XSS) via unescaped input
User-controlled inputs are improperly escaped in: * VotePage.php (poll option input) * ResultPage::getPagesTab() and getErrorsTab() (user-controllable page names) This allows attackers to inject JavaScript and compromise user sessions under certain conditions…
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Critical 9.1
Unauthorized Disclosure of IP Reputation in AbuseFilter
Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension allows Unauthorized Access.This issue affects Mediawiki - AbuseFilter Extension: from 1.43.X before 1.43.2.
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Critical 9.1
Unauthorized Inspection of Protected Variables in AbuseFilter
Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension allows Unauthorized Access.This issue affects Mediawiki - AbuseFilter Extension: from 1.43.X before 1.43.2.
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High 8.8
SecurePoll: Multiple admin actions vulnerable to Cross-Site Request Forgery
ArchivePage.php, UnarchivePage.php, and VoterEligibilityPage#executeClear() do not validate request methods or CSRF tokens, allowing attackers to trigger sensitive actions if an admin visits a malicious site. This issue affects Mediawiki - SecurePoll extensio…
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High 8.8
Content Access Bypass in Scribunto
Improper Access Control vulnerability in Wikimedia Foundation Mediawiki - Scribunto Extension allows : Accessing Functionality Not Properly Constrained by Authorization.This issue affects Mediawiki - Scribunto Extension: from 1.39.X before 1.39.12, from 1.42.…
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High 8.8
Security Authentication Bypass in CentralAuth
Improper Authentication vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows : Bypass Authentication.This issue affects Mediawiki - CentralAuth Extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43…
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High 8.6
TabberNeue vulnerable to Stored XSS through wikitext
TabberNeue is a MediaWiki extension that allows the wiki to create tabs. Starting in version 3.0.0 and prior to version 3.1.1, any user can insert arbitrary HTMLinto the DOM by inserting a payload into any allowed attribute of the `<tabber>` tag. Version 3.1.…
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High 8.6
Citizen is vulnerable to stored XSS attack in the legacy search bar
Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. From versions 1.9.4 to before 3.4.0, page descriptions are inserted into raw HTML without proper sanitization by the Citizen skin when using the old search bar. Any user with p…
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High 8.6
Citizen Short Description stored XSS vulnerability through wikitext
Short Description is a MediaWiki extension that provides local short description support. In version 4.0.0, short descriptions are not properly sanitized before being inserted as HTML using mw.util.addSubtitle, allowing any user to insert arbitrary HTML into …
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High 8.6
Citizen stored XSS vulnerability through short descriptions
Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. From versions 1.9.4 to before 3.4.0, short descriptions set via the ShortDescription extension are inserted as raw HTML by the Citizen skin, allowing any user to insert arbitra…
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High 8.0
ManageWiki has SQL injection vulnerability in NamespaceMigrationJob
ManageWiki is a MediaWiki extension allowing users to manage wikis. Versions before commit f504ed8, are vulnerable to SQL injection when renaming a namespace in Special:ManageWiki/namespaces when using a page prefix (namespace name, which is the current names…
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High 7.5
Denial of service vector on ipinfo/v0/norevision
Uncontrolled Resource Consumption vulnerability in Wikimedia Foundation Mediawiki - IPInfo Extension allows Excessive Allocation.This issue affects Mediawiki - IPInfo Extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
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High 7.5
SecurePoll: Unauthorized access to SetTranslationHandler allows arbitrary text changes
SetTranslationHandler.php does not validate that the user is an election admin, allowing any (even unauthenticated) user to change election-related translation text. While partially broken in newer MediaWiki versions, the check is still missing. This issue af…
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Medium 6.5
Citizen allows stored XSS in Command Palette tip messages
Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. Multiple system messages are inserted into the CommandPaletteFooter as raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM. This impact…
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Medium 6.5
Citizen allows stored XSS in search no result messages
Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. The citizen-search-noresults-title and citizen-search-noresults-desc system messages are inserted into raw HTML, allowing anybody who can edit those messages to insert arbitrar…
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Medium 6.5
Citizen allows stored XSS in preference menu headings
Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. Various preferences messages are inserted into raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM. This vulnerability is fixed in 3.3.…
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Medium 6.5
Citizen allows stored XSS in user registration date message
Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. Various date messages returned by `Language::userDate` are inserted into raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM. This impa…
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Medium 6.5
Citizen allows stored XSS in menu heading message
Citizen is a MediaWiki skin that makes extensions part of the cohesive experience. All system messages in menu headings using the Menu.mustache template are inserted as raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the D…
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Medium 6.5
Stored XSS in MintyDocs
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MintyDocs Extension allows Stored XSS.This issue affects Mediawiki - MintyDocs Extension: from 1.43.X before 1.43.2.
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Medium 6.5
Stored XSS in TwoColConflict
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - TwoColConflict Extension allows Stored XSS.This issue affects Mediawiki - TwoColConflict Extension: from 1.39.X befor…
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Medium 6.5
HTML injection in FeaturedFeeds
Improper Input Validation vulnerability in Wikimedia Foundation Mediawiki - FeaturedFeeds Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - FeaturedFeeds Extension: 1.39.X, 1.42.X, 1.43.X.
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Medium 6.3
Stored XSS in UrlShortener
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - UrlShortener Extension allows Stored XSS.This issue affects Mediawiki - UrlShortener Extension: from 1.42.X before 1.…
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Medium 6.1
IPInfo: Message key XSS through several IPInfo messages in infobox and popup
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - IPInfo Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - IPInfo Extension: from 1.39.X befor…
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Medium 6.1
Stored XSS in WikiHiero
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiHiero Extension allows Stored XSS.This issue affects Mediawiki - WikiHiero Extension: from 1.43.X before 1.43.2.
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Medium 5.6
XSS in GoogleDocs4MW
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - GoogleDocs4MW Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - GoogleDocs4MW Extension: fro…
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Medium 5.6
Multiple XSS in CampaignEvents
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - CampaignEvents Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - CampaignEvents Extension: f…
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Medium 5.6
Stored XSS in MassEditRegex
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MassEditRegex Extension allows Stored XSS.This issue affects Mediawiki - MassEditRegex Extension: from 1.39.X before …
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Medium 5.4
CheckUser: Reflected Cross-Site Scripting (XSS) in Special:Investigate via unsanitized i18n messages
The CheckUser extension’s Special:Investigate interface is vulnerable to reflected XSS due to improper escaping of certain internationalized system messages rendered on the “IPs and User agents” tab. This issue affects Mediawiki - CheckUser extension: from 1.…
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Medium 5.4
CheckUser: Reflected Cross-Site Scripting (XSS) in Special:CheckUser via unsanitized internationalized message
The CheckUser extension’s Special:CheckUser interface is vulnerable to reflected XSS via the rev-deleted-user message. This message is rendered without proper escaping, making it possible to inject JavaScript through the uselang=x-xss language override mechan…
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Medium 5.4
CheckUser: Reflected Cross-Site Scripting (XSS) in Special:Investigate (Account information tab) via unsanitized i18n messages
The CheckUser extension’s Special:Investigate page has a vulnerability in the Account information tab, where specific internationalized messages are rendered without proper escaping. Attackers can exploit this by appending ?uselang=x-xss to the URL, causing r…
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Medium 5.4
WikiCategoryTagCloud: Reflected Cross-Site Scripting (XSS) via linkstyle attribute in parser function
The WikiCategoryTagCloud extension is vulnerable to reflected XSS via the linkstyle attribute, which is improperly concatenated into inline HTML without escaping. An attacker can inject JavaScript event handlers such as onmouseenter using carefully crafted in…
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Medium 5.4
ApprovedRevs: Stored Cross-Site Scripting (XSS) via unsanitized system messages
The ApprovedRevs extension for MediaWiki is vulnerable to stored XSS in multiple locations where system messages are inserted into raw HTML without proper escaping. Attackers can exploit this by injecting JavaScript payloads via the uselang=x-xss language ove…
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Medium 5.4
XSS in FlaggedRevs
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - FlaggedRevs Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - FlaggedRevs Extension: from 1.…
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Medium 5.4
Stored XSS in MediaSearch
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MediaSearch Extension allows Stored XSS.This issue affects Mediawiki - MediaSearch Extension: from 1.42.X before 1.42…
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Medium 5.4
Stored XSS in RelatedArticles
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - RelatedArticles Extension allows Stored XSS.This issue affects Mediawiki - RelatedArticles Extension: from 1.43.X bef…
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Medium 5.4
Stored XSS in Quiz
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Quiz Extension allows Stored XSS.This issue affects Mediawiki - Quiz Extension: from 1.39.X before 1.39.13, from 1.42…
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Medium 5.4
MsUpload: Stored Cross-Site Scripting (XSS) via unsanitized msu-continue system message
The MsUpload extension for MediaWiki is vulnerable to stored XSS via the msu-continue system message, which is inserted into the DOM without proper sanitization. The vulnerability occurs in the file upload UI when the same filename is uploaded twice. This iss…
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Medium 5.4
TitleIcon: Stored Cross-Site Scripting (XSS) via #titleicon_unicode parser function
The TitleIcon extension for MediaWiki is vulnerable to stored XSS through the #titleicon_unicode parser function. User input passed to this function is wrapped in an HtmlArmor object without sanitization and rendered directly into the page header, allowing at…
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Medium 5.3
Lack of Audit Logging in AbuseFilter
Insufficient Logging vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension allows Data Leakage Attacks.This issue affects Mediawiki - AbuseFilter Extension: from 1.43.X before 1.43.2.
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Medium 4.6
ManageWiki vulnerable to permission bypass when disabling extensions requiring certain permissions in Special:ManageWiki/extensions
ManageWiki is a MediaWiki extension allowing users to manage wikis. Prior to commit 00bebea, when enabling a conflicting extension, a restricted extension would be automatically disabled even if the user did not hold the ManageWiki-restricted right. This issu…
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Medium 4.4
ManageWiki Vulnerable to Self-XSS in review dialog via unsanitized field reflection
ManageWiki is a MediaWiki extension allowing users to manage wikis. Prior to commit 2f177dc, ManageWiki is vulnerable to reflected or stored XSS in the review dialog. A logged-in attacker must change a form field to include a malicious payload. If that same u…
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Low 3.7
Stored XSS in MintyDocs
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MintyDocs Extension allows Stored XSS.This issue affects Mediawiki - MintyDocs Extension: from 1.43.X before 1.43.2.
Revision history
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#2
Neue Updates von Debian aufgenommen
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#1
Initiale Fassung
References
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MediaWiki Extensions and Skins Security Release Supplement vom 2025-07-09
https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/B757OC4UOPKOO4EYXNPUKQY2BS4CQE2E/
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Debian Security Advisory DLA-4249 vom 2025-07-23
https://lists.debian.org/debian-lts-announce/2025/07/msg00012.html