Bug 2541656 (CVE-2026-100376) - CVE-2026-100376 mediawiki: mediawiki: Cross-Site Scripting in TemplateSandbox via crafted preview prefix
Summary: CVE-2026-100376 mediawiki: mediawiki: Cross-Site Scripting in TemplateSandbox...
Keywords:
Status: NEW
Alias: CVE-2026-100376
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2542989
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-25 21:01 UTC by OSIDB Bzimport
Modified: 2026-09-29 07:47 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-09-25 21:01:35 UTC 
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - TemplateSandbox Extension allows Cross-Site Scripting (XSS).

This issue affects Mediawiki - TemplateSandbox Extension: from * before 1.46.1, 1.45.5, 1.43.10.
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