CVE-2023-37908 PoC — org.xwiki.rendering:xwiki-rendering-xml Improper Neutralization of Invalid Characters in Identifiers in Web Pages vulner

Source

https://github.com/shoucheng3/xwiki__xwiki-rendering_CVE-2023-37908_14-10-3

Associated Vulnerability

Title: org.xwiki.rendering:xwiki-rendering-xml Improper Neutralization of Invalid Characters in Identifiers in Web Pages vulnerability (CVE-2023-37908)
Description:XWiki Rendering is a generic Rendering system that converts textual input in a given syntax into another syntax. The cleaning of attributes during XHTML rendering, introduced in version 14.6-rc-1, allowed the injection of arbitrary HTML code and thus cross-site scripting via invalid attribute names. This can be exploited, e.g., via the link syntax in any content that supports XWiki syntax like comments in XWiki. When a user moves the mouse over a malicious link, the malicious JavaScript code is executed in the context of the user session. When this user is a privileged user who has programming rights, this allows server-side code execution with programming rights, impacting the confidentiality, integrity and availability of the XWiki instance. While this attribute was correctly recognized as not allowed, the attribute was still printed with a prefix `data-xwiki-translated-attribute-` without further cleaning or validation. This problem has been patched in XWiki 14.10.4 and 15.0 RC1 by removing characters not allowed in data attributes and then validating the cleaned attribute again. There are no known workarounds apart from upgrading to a version including the fix.

Readme

# XWiki Rendering

[XWiki Rendering](http://rendering.xwiki.org/xwiki/bin/view/Main/) is a generic Rendering system that converts textual input in a given syntax (wiki syntax, HTML, etc) into another syntax (XHTML, etc).

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

## Download
The XWiki Rendering JARs are available in the [![Maven Central Repository](https://img.shields.io/maven-central/v/org.xwiki.rendering/xwiki-rendering.svg?maxAge=3600)](http://search.maven.org/#search|ga|1|g%3A%22org.xwiki.rendering%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/XRENDERING) 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 Develocity](https://img.shields.io/badge/Revved%20up%20by-Develocity-06A0CE?logo=Gradle&labelColor=02303A)](https://ge.xwiki.org/scans)

## Project Statistics

![XWiki Rendering Activity](https://repobeats.axiom.co/api/embed/3dc6b0c01ac6d779d45a3c1173a59085153dca5a.svg "XWiki Rendering Activity")

Note that we're [using an issue tracker](http://jira.xwiki.org/browse/XRENDERING) other than GitHub Issues (hence the empty left column in the stats).

See the [Project Health page](https://dev.xwiki.org/xwiki/bin/view/Community/ProjectHealth) for more statistics about the XWiki project.

## Community

We're always looking for contributors!

You should read our [Get Involved Guide](https://dev.xwiki.org/xwiki/bin/view/Community/Contributing) or get in touch:
* [Forum](https://dev.xwiki.org/xwiki/bin/view/Community/Discuss)
* [Chat](https://dev.xwiki.org/xwiki/bin/view/Community/Chat)

You can follow the XWiki news in [our blog](https://www.xwiki.org/xwiki/bin/view/Blog/).

Thank you to all contributors:

<a href="https://github.com/xwiki/xwiki-rendering/graphs/contributors">
  <img src="https://contrib.rocks/image?repo=xwiki/xwiki-rendering&max=5000" />
</a>

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