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Wikimedia Foundation MediaWiki - CSS extensionPath Traversal vulnerability in CSS extension on certain web servers

Risk 31
Severity
7.5
EPSS
0.06%
Path Traversal
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

First published (updated )
CVE-2026-0669

The Wikimedia Foundation Mediawiki - UrlShortener ExtensionUrlShortener defaults to ineffective validation open to third-party redirects

Risk 50
Severity
6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

First published (updated )
CVE-2026-58520

Wikimedia Foundation MediaWiki - WikiLambda ExtensionBlocked users can create and edit WikiLambda objects

Risk 50
Severity
6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

First published (updated )
CVE-2026-58517

Wikimedia Foundation Mediawiki - Charts ExtensionStored XSS in Wikimedia Chart pie tooltip via Data:*.tab field title

Risk 50
Severity
6.9
XSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

First published (updated )
CVE-2026-14358

Wikimedia Foundation MediaWikiRemote Code Execution via Unsafe Deserialization in LogItem Import

Risk 86
Severity
5.9
Code Injection
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki.

This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php.

This issue affects MediaWiki: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-58025

Wikimedia Foundation MediaWiki - CampaignEvents extensionMultiple XSS in CampaignEvents

Risk 42
Severity
5.6
XSS
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

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: from 1.43.X before 1.43.2.

First published (updated )
CVE-2025-53490

Wikimedia Foundation SyntaxHighlight_GeSHiSyntaxHighlight stored XSS via unsanitized 'linelinks' attribute

Risk 38
Severity
5.3
XSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation SyntaxHighlightGeSHi.

This vulnerability is associated with program files includes/SyntaxHighlight.Php.

This issue affects SyntaxHighlightGeSHi: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-58030

Wikimedia Foundation MediaWiki"Total number of distinct authors" statistic at action=info does not exclude revisions where the author name was deleted

Risk 37
Severity
5.3
Infoleak
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki.

This vulnerability is associated with program files includes/Actions/InfoAction.Php.

This issue affects MediaWiki: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-58033

Wikimedia Foundation AbuseFilterQueryAbuseFilter API can be used to see the hit count of private filters, which is hidden in the UI

Risk 38
Severity
5.3
Infoleak
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation AbuseFilter.

This vulnerability is associated with program files includes/Api/QueryAbuseFilters.Php.

This issue affects AbuseFilter: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-58027

Wikimedia Foundation MediaWikimw.Api.getErrorMessage() may return injected HTML if used without errorformat=html

Risk 38
Severity
5.3
XSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki.

This vulnerability is associated with program files resources/src/mediawiki.Api/index.Js.

This issue affects MediaWiki: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-58032

Wikimedia Foundation MediaWikiFull Account Takeover from BotPasswords and OAuth via action=changeauthenticationdata

Risk 40
Severity
5.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vulnerability in Wikimedia Foundation MediaWiki.

This vulnerability is associated with program files includes/Api/ApiChangeAuthenticationData.Php, includes/Api/ApiLinkAccount.Php, includes/Api/ApiRemoveAuthenticationData.Php, includes/Specials/SpecialLinkAccounts.Php, includes/Specials/SpecialUnlinkAccounts.Php.

This issue affects MediaWiki: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-58029

Wikimedia Foundation MediaWikiAPI identification of users on private wikis

Risk 33
Severity
5.1
Infoleak
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki.

This vulnerability is associated with program files includes/Api/ApiUserrights.Php.

This issue affects MediaWiki: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-58024

Wikimedia Foundation MediaWikiEventStreams publishes suppressed recent change entries that are suppressed from their creation

Risk 38
Severity
2.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:M/U:Green

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/recentchanges/RecentChangeRCFeedNotifier.Php.

This issue affects MediaWiki: from before 1.39.14, 1.43.4, 1.44.1.

First published (updated )
CVE-2025-61643

Wikimedia Foundation MediaWikiAPI list=allpages with maxsize is making really slow queries

Risk 38
Severity
1.7
Path Traversal
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/api/ApiQueryAllPages.Php.

This issue affects MediaWiki: from before 1.39.14, 1.43.4, 1.44.1.

First published (updated )
CVE-2025-61641

Wikimedia Foundation MediaWikiWatchlist group mode reveals authors of edits with hidden authorship

Risk 34
Severity
1.2
Path Traversal
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/RecentChanges/EnhancedChangesList.Php.

This issue affects MediaWiki: from before 1.39.14, 1.43.4, 1.44.1.

First published (updated )
CVE-2025-61646

Wikimedia Foundation MediaWikiStored XSS through system messages provided to CodexHtmlForms

Risk 38
Severity
XSS
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/htmlform/CodexHTMLForm.Php, includes/htmlform/fields/HTMLButtonField.Php.

This issue affects MediaWiki: from before 1.39.14, 1.43.4, 1.44.1.

First published (updated )
CVE-2025-61642

Wikimedia Foundation MediaWikiStored i18n XSS exposed by security patch for T402077

Risk 38
Severity
XSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Language/mediawiki.Language.Js.

This issue affects MediaWiki: from before 1.39.15, 1.43.5, 1.44.2.

First published (updated )
CVE-2025-11261

Wikimedia Foundation MediaWikiStored XSS through edit summaries in MW Core

Risk 38
Severity
XSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/CommentFormatter/CommentParser.Php.

This issue affects MediaWiki: from before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

First published (updated )
CVE-2025-67475

Wikimedia Foundation MediaWikilist=allrevisions can be used to bypass Extension:Lockdown

Risk 38
Severity
Input Validation
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Api/ApiQueryRevisionsBase.Php.

This issue affects MediaWiki: from before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

First published (updated )
CVE-2025-67480

Wikimedia Foundation MediaWikiAction API xslt option allows JavaScript execution by administrators who are not interface administrators

Risk 86
Severity
Input Validation
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Api/ApiFormatXml.Php.

This issue affects MediaWiki: from before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

First published (updated )
CVE-2025-67484

Wikimedia Foundation MediaWikimw.message(…).parse() doesn't output safe HTML, but it's being used as if it does

Risk 38
Severity
XSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.JqueryMsg/mediawiki.JqueryMsg.Js.

This issue affects MediaWiki: from before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

First published (updated )
CVE-2025-67481

Wikimedia Foundation MediaWikiTheoretical i18n XSS in mediawiki.page.preview.js when a page has multiple protection levels

Risk 38
Severity
XSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Page.Preview.Js.

This issue affects MediaWiki: from before 1.43.6, 1.44.3, 1.45.1.

First published (updated )
CVE-2025-67483

Wikimedia Foundation MediaWikiPretty-printed API output combined with centralauthtoken allows XSS with certain gadgets

Risk 34
Severity
XSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation CentralAuth.

This vulnerability is associated with program files includes/Api/ApiFormatBase.Php, includes/Api/ApiHelp.Php, includes/ResourceLoader/Module.Php, includes/Hooks/Handlers/PageDisplayHookHandler.Php, includes/LogFormatter/PermissionChangeLogFormatter.Php.

This issue affects MediaWiki: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9; CentralAuth: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-58028

Wikimedia Foundation timelineStored XSS through javascript URLs in SVGs generated by EasyTimeline

Risk 38
Severity
XSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation timeline.

This vulnerability is associated with program files includes/Timeline.Php, scripts/EasyTimeline.Pl.

This issue affects timeline: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-58038

src/Backend/MWOAuthServer.PhpSession fixation attacks on improperly configured OAuth 1.0a tools

Risk 62
Severity
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Session fixation vulnerability in Wikimedia Foundation OAuth.

This vulnerability is associated with program files src/Backend/MWOAuthServer.Php.

This issue affects OAuth: from through 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-13707

Wikimedia Foundation MediaWikiCore log entries for exceptions and XSS issues in log entry formatting code that may be caused by user-controlled input

Risk 38
Severity
XSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki.

This vulnerability is associated with program files includes/Language/Language.Php, includes/Logging/BlockLogFormatter.Php, includes/Logging/LogFormatter.Php, includes/Logging/PatrolLogFormatter.Php, includes/Logging/RenameuserLogFormatter.Php, includes/Logging/TagLogFormatter.Php, includes/Specials/SpecialVersion.Php.

This issue affects MediaWiki: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-58037

Wikimedia Foundation UrlShortener extensionUrlShortener extension url validation can be bypassed due to difference between php url parsing and WHATWG

Risk 79
Severity
Input Validation
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Improper input validation vulnerability in Wikimedia Foundation UrlShortener.

This vulnerability is associated with program files includes/UrlShortenerUtils.Php.

First published (updated )
CVE-2026-13706

Wikimedia Foundation MediaWiki$wgNonincludableNamespaces can be bypassed by embedding redirect in other namespaces

Risk 33
Severity
Infoleak
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki.

This vulnerability is associated with program files includes/Parser/Parser.Php.

This issue affects MediaWiki: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-58026

Wikimedia Foundation timelineFull RCE using EasyTimeline Extension

Risk 57
Severity
EPSS
2.10%
Code Injection
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

A vulnerability in Wikimedia Foundation timeline.

This vulnerability is associated with program files scripts/EasyTimeline.Pl, includes/Timeline.Php.

This issue affects timeline: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

First published (updated )
CVE-2026-8857

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