[MessageBar] HTML and Script can be injected into MessageBar Title#4414
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[MessageBar] HTML and Script can be injected into MessageBar Title#4414
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✅ All tests passed successfully Details on your Workflow / Core Tests page. |
Summary - Unit Tests Code CoverageSummary
CoverageMicrosoft.FluentUI.AspNetCore.Components - 61.2%
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Dec 19, 2025
This was referenced Feb 13, 2026
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[MessageBar] HTML and Script can be injected into MessageBar Title
Following the detection of an XSS vulnerability, we have modified the default behavior of
ShowMessageBarAsync. HTML/JS code is therefore no longer injected.If the developer wishes to format the text to be displayed in the bar, they may do so at their own risk by explicitly using conversion to
MarkupString.