XWiki Platform vulnerable to code injection from account/view through VFS Tree macro

Impact

Any user with view rights can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of Macro.VFSTreeMacro. This page is not installed by default.

See https://jira.xwiki.org/browse/XWIKI-20260 for the reproduction steps.

Patches

The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.2, 14.4.8, 13.10.11.

Workarounds

The issue can be fixed by applying this patch on Macro.VFSTreeMacro.

References

• https://jira.xwiki.org/browse/XWIKI-20260
• https://github.com/xwiki/xwiki-platform/commit/fad02328f5ec7ab7fe5b932ffb5bc5c1ba7a5b12

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