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CVE-2026-34092— Block UI elements in 'tools'-sidebar shows presence of an autoblocked IP

AI Predicted 5.3 Difficulty: Easy EPSS 0.03% · P10

Possible ATT&CK Techniques 1AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProductVersion RangeStatus
Wikimedia FoundationMediaWiki*< 1.43.7, 1.44.4, 1.45.2affected
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I. Basic Information for CVE-2026-34092

Vulnerability Information
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Vulnerability Title
Block UI elements in 'tools'-sidebar shows presence of an autoblocked IP
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Wikimedia MediaWiki 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wikimedia MediaWiki是Wikimedia基金会的一个用于构建Wiki网站的Web应用。 Wikimedia MediaWiki 1.43.7之前版本、1.44.4版本和1.45.2版本存在信息泄露漏洞，该漏洞源于includes/Skin/Skin.Php程序文件中的敏感信息泄露给未授权攻击者。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Wikimedia FoundationMediaWiki * ~ 1.43.7, 1.44.4, 1.45.2 -

II. Public POCs for CVE-2026-34092

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III. Intelligence Information for CVE-2026-34092

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Same Patch Batch · Wikimedia Foundation · 2026-05-11 · 11 CVEs total

CVE-2026-34090Suggested investigations: Handle suppressed usernames
CVE-2026-34089Memory leak in Scribunto causes runJobs.php to run out of memory
CVE-2026-34091User localization leaked by AbuseFilter + EventStream
CVE-2026-34086AbuseFilter misuses ::userCanBitfield, exposing access-controlled information
CVE-2026-34087Users API leaks whether privileged users have their user groups disabled for lack of 2FA
CVE-2026-34093Special:UserRights allows viewing user rights from private wiki
CVE-2026-34094Customized help link for page protection indicator is relative to subpage name, because th
CVE-2026-34095action=raw with Special:Mypage subpage title responds with "Content-Type: text/html" on ct
CVE-2026-34088RecentChanges entries expose suppressed content via generated log page html
CVE-2026-5266Wikimedia Echo 信息泄露漏洞

IV. Related Vulnerabilities

Same product: MediaWiki
Same vendor: Wikimedia Foundation
Same weakness: CWE-200

V. Comments for CVE-2026-34092

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