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https://issues.apache.org/jira/browse/SLING-7658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16468510#comment-16468510
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Konrad Windszus commented on SLING-7658:
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The reason for this issue is actually the underlying
{{org.owasp.encoder.Encode}} class which will always replace {{&}} by {{&}}.
> XSSApi.encodeForHtml doesn't leave unicode character escapes untouched
> ----------------------------------------------------------------------
>
> Key: SLING-7658
> URL: https://issues.apache.org/jira/browse/SLING-7658
> Project: Sling
> Issue Type: Bug
> Components: XSS Protection API
> Affects Versions: XSS Protection API 2.1.0
> Reporter: Konrad Windszus
> Priority: Major
> Attachments: SLING-7658-v01.patch
>
>
> Whenever {{encodeForHtml}} is called with a string containing a unicode
> character escapes
> (https://www.w3.org/International/questions/qa-escapes#answer), those are
> escaped incorrectly again. I.e. {{✅}} becomes {{✅}}.
> Compare with the discussion at
> https://www.mail-archive.com/dev@sling.apache.org/msg76863.html.
> Attached is a patch with a failing test.
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