Headline
GHSA-6vgh-9r3c-2cxp: Improper Neutralization of Script-Related HTML Tags (XSS) in the LiveTable Macro
Impact
The Livetable Macro wasn’t properly sanitizing column names, thus allowing the insertion of raw HTML code including JavaScript. This vulnerability was also exploitable via the Documents Macro that is included since XWiki 3.5M1 and doesn’t require script rights, this can be demonstrated with the syntax {{documents id="example" count="5" actions="false" columns="doc.title, before<script>alert(1)</script>after"/}}. Therefore, this can also be exploited by users without script right and in comments. With the interaction of a user with more rights, this could be used to execute arbitrary actions in the wiki, including privilege escalation, remote code execution, information disclosure, modifying or deleting content.
Patches
This has been patched in XWiki 14.9, 14.4.6, and 13.10.10.
Workarounds
It is possible to apply the patch to existing installations without upgrading. Only the files skins/flamingo/macros.vm and templates/macros.vm in the web application directory need to be replaced by a patched version.
References
- https://github.com/xwiki/xwiki-platform/commit/65ca06c51e7a1d5a579344c7272b2cc9a9a21126
- https://jira.xwiki.org/browse/XWIKI-15205
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira XWiki.org
- Email us at Security Mailing List
- GitHub Advisory Database
- GitHub Reviewed
- CVE-2023-29207
Improper Neutralization of Script-Related HTML Tags (XSS) in the LiveTable Macro
High severity GitHub Reviewed Published Apr 12, 2023 in xwiki/xwiki-platform • Updated Apr 12, 2023
Package
maven org.xwiki.platform:xwiki-platform-flamingo (Maven)
Affected versions
>= 1.9-milestone-2, < 13.10.10
>= 14.0-rc-1, < 14.4.6
>= 14.5, < 14.9
Patched versions
13.10.10
14.4.6
14.9
maven org.xwiki.platform:xwiki-platform-flamingo-skin (Maven)
>= 1.9-milestone-2, < 13.10.10
>= 14.0-rc-1, < 14.4.6
>= 14.5, < 14.9
maven org.xwiki.platform:xwiki-platform-flamingo-skin-resources (Maven)
>= 1.9-milestone-2, < 13.10.10
>= 14.0-rc-1, < 14.4.6
>= 14.5, < 14.9
maven org.xwiki.platform:xwiki-platform-web (Maven)
>= 1.9-milestone-2, < 13.10.10
>= 14.0-rc-1, < 14.4.6
>= 14.5, < 14.9
maven org.xwiki.platform:xwiki-platform-web-templates (Maven)
>= 1.9-milestone-2, < 13.10.10
>= 14.0-rc-1, < 14.4.6
>= 14.5, < 14.9
maven org.xwiki.platform:xwiki-web-standard (Maven)
>= 1.9-milestone-2, < 13.10.10
>= 14.0-rc-1, < 14.4.6
>= 14.5, < 14.9
Impact
The Livetable Macro wasn’t properly sanitizing column names, thus allowing the insertion of raw HTML code including JavaScript. This vulnerability was also exploitable via the Documents Macro that is included since XWiki 3.5M1 and doesn’t require script rights, this can be demonstrated with the syntax {{documents id="example" count="5" actions="false" columns="doc.title, before<script>alert(1)</script>after"/}}. Therefore, this can also be exploited by users without script right and in comments. With the interaction of a user with more rights, this could be used to execute arbitrary actions in the wiki, including privilege escalation, remote code execution, information disclosure, modifying or deleting content.
Patches
This has been patched in XWiki 14.9, 14.4.6, and 13.10.10.
Workarounds
It is possible to apply the patch to existing installations without upgrading. Only the files skins/flamingo/macros.vm and templates/macros.vm in the web application directory need to be replaced by a patched version.
References
- xwiki/xwiki-platform@65ca06c
- https://jira.xwiki.org/browse/XWIKI-15205
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira XWiki.org
- Email us at Security Mailing List
References
- GHSA-6vgh-9r3c-2cxp
- xwiki/xwiki-platform@65ca06c
- https://jira.xwiki.org/browse/XWIKI-15205
Published to the GitHub Advisory Database
Apr 12, 2023
Last updated
Apr 12, 2023
Related news
XWiki Commons are technical libraries common to several other top level XWiki projects. The Livetable Macro wasn't properly sanitizing column names, thus allowing the insertion of raw HTML code including JavaScript. This vulnerability was also exploitable via the Documents Macro that is included since XWiki 3.5M1 and doesn't require script rights, this can be demonstrated with the syntax `{{documents id="example" count="5" actions="false" columns="doc.title, before<script>alert(1)</script>after"/}}`. Therefore, this can also be exploited by users without script right and in comments. With the interaction of a user with more rights, this could be used to execute arbitrary actions in the wiki, including privilege escalation, remote code execution, information disclosure, modifying or deleting content. This has been patched in XWiki 14.9, 14.4.6, and 13.10.10.