GHSA-xjfw-5vv5-vjq2

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GHSA-xjfw-5vv5-vjq2

Summary: Cross-site Scripting in Filter Stream Converter Application in XWiki Platform

Details: ### Impact We found a possible XSS vector in the `Filter.FilterStreamDescriptorForm` wiki page related to pretty much all the form fields printed in the home page of the application. ### Patches The issue is patched in versions 12.10.11, 14.0-rc-1, 13.4.7, 13.10.3. ### Workarounds The easiest workaround is to edit the wiki page `Filter.FilterStreamDescriptorForm` (with wiki editor) and change the lines ``` <input type="text" id="$descriptorId" name="$descriptorId" value="#if($request.get($descriptorId))$request.get($descriptorId)#else$descriptor.defaultValue#end"/> #else <input type="text" id="$descriptorId" name="$descriptorId"#if($request.get($descriptorId))value="$request.get($descriptorId)"#end/> ``` into ``` <input type="text" id="$descriptorId" name="$descriptorId" value="#if($request.get($descriptorId))$escapetool.xml($request.get($descriptorId))#else$descriptor.defaultValue#end"/> #else <input type="text" id="$descriptorId" name="$descriptorId"#if($request.get($descriptorId))value="$escapetool.xml($request.get($descriptorId))"#end/> ```

References: https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-xjfw-5vv5-vjq2, https://nvd.nist.gov/vuln/detail/CVE-2022-29258, https://github.com/xwiki/xwiki-platform/commit/21906acb5ee2304552f56f9bbdbf8e7d368f7f3a, https://github.com/xwiki/xwiki-platform, https://jira.xwiki.org/browse/XWIKI-19293