xwiki-platform-web-templates vulnerable to Eval Injection
ImpactAny user with edit rights on a page (e.g., it's own user page), 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 the information loaded from attachments in `imported.vm`, `importinline.vm`, and `packagelist.vm`. This page is installed by default.Reproduction steps are described in https://jira.xwiki.org/browse/XWIKI-20267PatchesThe vulnerability has been patched in XWiki 15.0-rc-1, 14.10.1, 14.4.8, and 13.10.11.WorkaroundsThe issue can be fixed by applying this [patch](https://github.com/xwiki/xwiki-platform/commit/e4bbdc23fea0be4ef1921d1a58648028ce753344) on `imported.vm`, `importinline.vm`, and `packagelist.vm`.Referenceshttps://github.com/xwiki/xwiki-platform/commit/e4bbdc23fea0be4ef1921d1a58648028ce753344https://jira.xwiki.org/browse/XWIKI-20267For more informationIf you have any questions or comments about this advisory:Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)Email us at [Security Mailing List](mailto:security@xwiki.org)