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CVE-2026-100378— Missing permission check in the Translate sandbox doRemind action

Quick assessment

Affected
Wikimedia Foundation Mediawiki - Translate Extension
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

维基媒体基金会 MediaWiki 的 Translate 扩展中存在缺失授权漏洞，该漏洞允许访问未通过访问控制列表（ACL）正确限制的功能。 此问题影响 MediaWiki Translate 扩展的版本：在 1.46.1、1.45.5 和 1.43.10 之前的所有版本。

CVSS 5.3 · Medium EPSS 0.27% · P17

Possible ATT&CK Techniques 1 AI

T1078.001 · Default Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
Wikimedia Foundation Mediawiki - Translate Extension *< 1.46.1, 1.45.5, 1.43.10 affected
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I. Basic Information for CVE-2026-100378

Vulnerability Information
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Vulnerability Title
Missing permission check in the Translate sandbox doRemind action
Source: CVE Program / CVE List V5
Vulnerability Description
Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - Translate Extension allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Mediawiki - Translate Extension: from * before 1.46.1, 1.45.5, 1.43.10.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Wikimedia Foundation Mediawiki - Translate Extension * ~ 1.46.1, 1.45.5, 1.43.10 -

II. Public POCs for CVE-2026-100378

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III. Intelligence Information for CVE-2026-100378

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Other References for CVE-2026-100378 (1)

Other References for CVE-2026-100378 (1)

Same Patch Batch · Wikimedia Foundation · 2026-09-25 · 8 CVEs total

CVE-2026-100382 10.0 CRITICAL Unauthenticated remote code execution through wikitext in ExternalData
CVE-2026-100377 6.9 MEDIUM Revision-deleted pages can be viewed through WikiLambda's action=edit and Special:ViewAbst
CVE-2026-100381 5.3 MEDIUM UploadWizard Flickr collection and set titles allow DOM XSS
CVE-2026-100380 5.3 MEDIUM Reflected XSS in Wikibase Special:SetLabel language validation
CVE-2026-100379 5.3 MEDIUM Cross-request disclosure of CentralAuth cookies in Wikipedia Android App
CVE-2026-100383 4.8 MEDIUM Stored i18n XSS in WikiLambda's VisualEditor integration
CVE-2026-100376 4.8 MEDIUM TemplateSandbox can be abused for XSS by asking another user to preview a page with a cert

IV. Related Vulnerabilities

Same product: Mediawiki - Translate Extension
Same vendor: Wikimedia Foundation
Same weakness: CWE-862

V. Comments for CVE-2026-100378

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