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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-04-15T14:24:59.250Z

Updated: 2024-08-02T14:00:16.065Z

Reserved: 2023-04-03T13:37:18.454Z

Link: CVE-2023-29201

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2023-04-15T15:15:08.273

Modified: 2023-04-25T18:26:53.610

Link: CVE-2023-29201

cve-icon Redhat

No data.