CVE-2023-29201 PoC — org.xwiki.commons:xwiki-commons-xml Cross-site Scripting vulnerability

Source

https://github.com/shoucheng3/xwiki__xwiki-commons_CVE-2023-29201_14-5

Associated Vulnerability

Title:org.xwiki.commons:xwiki-commons-xml Cross-site Scripting vulnerability (CVE-2023-29201)
Description:XWiki Commons are technical libraries common to several other top level XWiki projects. The "restricted" mode of the HTML cleaner in XWiki, introduced in version 4.2-milestone-1, only escaped `<script>` and `<style>`-tags but neither attributes that can be used to inject scripts nor other dangerous HTML tags like `<iframe>`. As a consequence, any code relying on this "restricted" mode for security is vulnerable to JavaScript injection ("cross-site scripting"/XSS). When a privileged user with programming rights visits such a comment in XWiki, the malicious JavaScript code is executed in the context of the user session. This allows server-side code execution with programming rights, impacting the confidentiality, integrity and availability of the XWiki instance. This problem has been patched in XWiki 14.6 RC1 with the introduction of a filter with allowed HTML elements and attributes that is enabled in restricted mode. There are no known workarounds apart from upgrading to a version including the fix.

Readme

# XWiki Commons

[XWiki Commons](http://commons.xwiki.org/xwiki/bin/view/Main/) are technical libraries common to several other top level XWiki projects. 

These libraries can be used by projects outside of the XWiki ecosystem, are generic and not related to the wiki domain.

XWiki Platform, XWiki Commons and XWiki Rendering are part of the [XWiki.org](http://www.xwiki.org/) software forge. They are released together and share the same version.

## Documentation
* [Documentation](http://commons.xwiki.org/)
* [API](http://platform.xwiki.org/xwiki/bin/view/DevGuide/API)
* [Development Zone](http://dev.xwiki.org/xwiki/bin/view/Community/)

## Download
The XWiki Commons JARs are available in the [![Maven Central Repository](https://img.shields.io/maven-central/v/org.xwiki.commons/xwiki-commons.svg?maxAge=3600)](http://search.maven.org/#search|ga|1|g%3A%22org.xwiki.commons%22).

## Release Notes
Read our [Release Notes](http://www.xwiki.org/xwiki/bin/view/ReleaseNotes/).

## Tools
* [Continuous Integration](http://ci.xwiki.org/) setup launches a build for each commit
* [Issue Tracker](http://jira.xwiki.org/browse/XCOMMONS) if you want to report an issue
* [Development Flow](http://dev.xwiki.org/xwiki/bin/view/Community/DevelopmentPractices#HGeneralDevelopmentFlow) to see the full list of tools we use to build XWiki
* [![Revved up by Gradle Enterprise](https://img.shields.io/badge/Revved%20up%20by-Gradle%20Enterprise-06A0CE?logo=Gradle&labelColor=02303A)](https://ge.xwiki.org/scans)

## Community
We're always looking for contributors! 
You should read our [Get Involved Guide](http://dev.xwiki.org/xwiki/bin/view/Community/Contributing) or get in touch:
* [Blog](http://www.xwiki.org/xwiki/bin/view/Blog/)
* [Forum](https://dev.xwiki.org/xwiki/bin/view/Community/Discuss)
* [Chat](https://dev.xwiki.org/xwiki/bin/view/Community/Chat)

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