CVE-2023-29201: org.xwiki.commons:xwiki-commons-xml Cross-site Scripting vulnerability
First published: Sat Apr 15 2023(Updated: )
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.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xwiki | >=5.0<=14.5 |
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Reference Links
- https://github.com/xwiki/xwiki-commons/commit/4a185e0594d90cd4916d60aa60bb4333dc5623b2
- https://github.com/xwiki/xwiki-commons/commit/b11eae9d82cb53f32962056b5faa73f3720c6182
- https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-m3jr-cvhj-f35j
- https://jira.xwiki.org/browse/XCOMMONS-1680
- https://jira.xwiki.org/browse/XCOMMONS-2426
- https://jira.xwiki.org/browse/XWIKI-9118
Frequently Asked Questions
What is the severity of CVE-2023-29201?
The severity of CVE-2023-29201 is classified as medium risk due to its potential for script injection.
How do I fix CVE-2023-29201?
To fix CVE-2023-29201, upgrade to a version of XWiki Commons higher than 14.5.
What versions of XWiki are affected by CVE-2023-29201?
CVE-2023-29201 affects XWiki versions from 5.0 to 14.5.
What type of vulnerability is CVE-2023-29201?
CVE-2023-29201 is a vulnerability related to improper input validation that can lead to script injection.
Is XWiki's restricted HTML cleaner effective against CVE-2023-29201?
The restricted HTML cleaner in XWiki is ineffective against CVE-2023-29201 as it fails to escape all relevant attributes.
- agent/references
- agent/type
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/description
- agent/weakness
- agent/remedy
- agent/author
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/title
- agent/source
- agent/tags
- agent/first-publish-date
- agent/event
- vendor/xwiki
- canonical/xwiki
- version/xwiki/5.0
- version/xwiki/14.5