Headline
GHSA-vwr6-qp4q-2wj7: XWiki Platform vulnerable to privilege escalation via async macro and IconThemeSheet from the user profile
Impact
One can execute any wiki content with the right of IconThemeSheet author by creating an icon theme with the following content:
}}}
{{async async="true"}}
{{groovy}}
println("Hello from Groovy!")
{{/groovy}}
{{/async}}
{{{
Can be done by creating a new page or even through the user profile for users not having edit right.
Patches
This has been patched in XWiki 14.9, 14.4.6, and 13.10.10.
Workarounds
An easy workaround is to actually fix the bug in the page IconThemesCode.IconThemeSheet by applying the following modification: https://github.com/xwiki/xwiki-platform/commit/48caf7491595238af2b531026a614221d5d61f38#diff-2ec9d716673ee049937219cdb0a92e520f81da14ea84d144504b97ab2bdae243R45
References
https://jira.xwiki.org/browse/XWIKI-19731
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira
- Email us at Security ML
- GitHub Advisory Database
- GitHub Reviewed
- CVE-2023-26472
XWiki Platform vulnerable to privilege escalation via async macro and IconThemeSheet from the user profile
Critical severity GitHub Reviewed Published Mar 1, 2023 in xwiki/xwiki-platform • Updated Mar 3, 2023
Package
maven org.xwiki.platform:xwiki-platform-icon-ui (Maven)
Affected versions
>= 6.2-milestone-1, < 13.10.10
>= 14.0, < 14.4.6
>= 14.5, < 14.9
Patched versions
13.10.10
14.4.6
14.9
Published by the National Vulnerability Database
Mar 2, 2023
Published to the GitHub Advisory Database
Mar 3, 2023
Related news
XWiki Platform is a generic wiki platform. Starting in version 6.2-milestone-1, one can execute any wiki content with the right of IconThemeSheet author by creating an icon theme with certain content. This can be done by creating a new page or even through the user profile for users not having edit right. The issue has been patched in XWiki 14.9, 14.4.6, and 13.10.10. An available workaround is to fix the bug in the page `IconThemesCode.IconThemeSheet` by applying a modification from commit 48caf7491595238af2b531026a614221d5d61f38.