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Mediawiki - Cargo ExtensionCargo Extension: SQLi in Special:Drilldown

Risk 86
Severity
6.9
SQL Injection
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 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.

First published (updated )
CVE-2026-14363

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 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

Mediawiki - Cargo ExtensionSQLi in Cargo extension via year range filter

Risk 86
Severity
6.9
SQL Injection
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 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.

First published (updated )
CVE-2026-58521

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 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 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 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 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 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 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 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 MediaWikiUser localization leaked by AbuseFilter + EventStream

Risk 43
Severity
5.5
Infoleak
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:P/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:U/V:X/RE:X/U:X

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

This issue affects MediaWiki: from before 1.43.7, 1.44.4, 1.45.2.

First published (updated )
CVE-2026-34091

Wikimedia Foundation OATHAuthUsers API leaks whether privileged users have their user groups disabled for lack of 2FA

Risk 43
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:N/AU:Y/R:A/V:X/RE:M/U:X

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

1 / 4
Source: Launchpad
First published (updated )
CVE-2026-34087

Wikimedia Foundation MediaWiki - VisualData ExtensionVisualData extension: Regular Expression Denial of Service (ReDoS) via crafted user input

Risk 19
Severity
5.3
EPSS
0.06%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Inefficient Regular Expression Complexity vulnerability in Wikimedia Foundation MediaWiki - VisualData Extension allows Regular Expression Exponential Blowup.This issue affects MediaWiki - VisualData Extension: 1.45.

First published (updated )
CVE-2026-0668

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