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CVE-2026-58024

API identification of users on private wikis

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.

CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
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CVE-2026-58035

Stored XSS through a system message in the codex version of Special:Block

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.Special.Block/SpecialBlock.Vue.

CVSS 4.0 · 0 Low EPSS < 1% KEV · Not listed
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CVE-2026-58032

mw.Api.getErrorMessage() may return injected HTML if used without errorformat=html

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.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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CVE-2026-58029

Full Account Takeover from BotPasswords and OAuth via action=changeauthenticationdata

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.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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CVE-2026-34093

Special:UserRights allows viewing user rights from private wiki

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Specials/SpecialUserRights.Php. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.

CVSS 4.0 · 1.1 Low EPSS < 1% KEV · Not listed
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CVE-2026-34094

Customized help link for page protection indicator is relative to subpage name, because the link target is missing the "/wiki/" prefix

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Page/Article.Php. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.

CVSS 4.0 · 2 Low EPSS < 1% KEV · Not listed
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CVE-2026-34087

Users API leaks whether privileged users have their user groups disabled for lack of 2FA

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation OATHAuth. This issue affects OATHAuth: from * before 1.43.7, 1.44.4, 1.45.2.

CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
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CVE-2026-34088

RecentChanges entries expose suppressed content via generated log page html

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.

CVSS 4.0 · 1.3 Low EPSS < 1% KEV · Not listed
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CVE-2026-34091

User localization leaked by AbuseFilter + EventStream

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.

CVSS 4.0 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2026-34092

Block UI elements in 'tools'-sidebar shows presence of an autoblocked IP

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Skin/Skin.Php. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.

CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed
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CVE-2026-34095

action=raw with Special:Mypage subpage title responds with "Content-Type: text/html" on ctype=text/javascript request

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Actions/ActionEntryPoint.Php, includes/Request/FauxResponse.Php. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.

CVSS 4.0 · 0 Low EPSS < 1% KEV · Not listed
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CVE-2008-4408

Cross-site scripting (XSS) vulnerability in MediaWiki 1.13.1, 1.12.0, and possibly other versions before 1.13.2 allows remote attackers to inject arbitrary web script or HTML via the useskin parameter to an unspecified component.

CVSS 2.0 · 4.3 Medium EPSS 1.6% KEV · Not listed
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CVE-2008-1318

Unspecified vulnerability in MediaWiki 1.11 before 1.11.2 allows remote attackers to obtain sensitive "cross-site" information via the callback parameter in an API call for JavaScript Object Notation (JSON) formatted results.

CVSS 2.0 · 5.0 Medium EPSS 1.5% KEV · Not listed
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CVE-2008-0460

Cross-site scripting (XSS) vulnerability in api.php in (1) MediaWiki 1.11 through 1.11.0rc1, 1.10 through 1.10.2, 1.9 through 1.9.4, and 1.8; and (2) the BotQuery extension for MediaWiki 1.7 and earlier; when Internet Explorer is used, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

CVSS 2.0 · 4.3 Medium EPSS 14.6% KEV · Not listed
CVE-2007-4883

Cross-site scripting (XSS) vulnerability in the BotQuery extension in MediaWiki 1.7.x and earlier before SVN 20070910 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a similar issue to CVE-2007-4828.

CVSS 2.0 · 4.3 Medium EPSS < 1% KEV · Not listed
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CVE-2007-4828

Cross-site scripting (XSS) vulnerability in the API pretty-printing mode in MediaWiki 1.8.0 through 1.8.4, 1.9.0 through 1.9.3, 1.10.0 through 1.10.1, and the 1.11 development versions before 1.11.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

CVSS 2.0 · 4.3 Medium EPSS 1.3% KEV · Not listed
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CVE-2007-1055

Cross-site scripting (XSS) vulnerability in the AJAX features in index.php in MediaWiki 1.9.x before 1.9.0rc2, and 1.8.2 and earlier allows remote attackers to inject arbitrary web script or HTML via the rs parameter. NOTE: this issue might be a duplicate of CVE-2007-0177.

CVSS 2.0 · 6.8 Medium EPSS 2.1% KEV · Not listed
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CVE-2007-1054

Cross-site scripting (XSS) vulnerability in the AJAX features in index.php in MediaWiki 1.6.x through 1.9.2, when $wgUseAjax is enabled, allows remote attackers to inject arbitrary web script or HTML via a UTF-7 encoded value of the rs parameter, which is processed by Internet Explorer.

CVSS 2.0 · 6.8 Medium EPSS 2.0% KEV · Not listed
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CVE-2007-0894

MediaWiki before 1.9.2 allows remote attackers to obtain sensitive information via a direct request to (1) Simple.deps.php, (2) MonoBook.deps.php, (3) MySkin.deps.php, or (4) Chick.deps.php in wiki/skins, which shows the installation path in the resulting error message.

CVSS 2.0 · 5.0 Medium EPSS 2.1% KEV · Not listed
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CVE-2007-0788

Cross-site scripting (XSS) vulnerability in MediaWiki 1.9.x before 1.9.2 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors related to "sortable tables JavaScript."

CVSS 2.0 · 4.3 Medium EPSS 1.3% KEV · Not listed
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