Impact
By creating a document with a specially crafted title, it is possible to trigger remote code execution in the (Solr-based) search in XWiki. This allows any user who can edit the title of a space (all users by default) to execute any Groovy code in the XWiki installation which compromises the confidentiality, integrity and availability of the whole XWiki installation.
To reproduce, as a user without script nor programming rights, create a document with title {{/html}}{{async}}{{groovy}}println("Hello from Groovy Title!"){{/groovy}}{{/async}} and content Test Document. Using the search UI, search for "Test Document", then deploy the Location facet on the right of the screen, next to the search results. The installation is vulnerable if you see an item such as:
Hello from Groovy Title!
</a>
<div class="itemCount">1</div>
</li>
</ul>
{{/html}}
Patches
This has been patched in XWiki 14.10.20, 15.5.4 and 15.10 RC1.
Workarounds
Modify the Main.SolrSpaceFacet page following this patch.
References
Impact
By creating a document with a specially crafted title, it is possible to trigger remote code execution in the (Solr-based) search in XWiki. This allows any user who can edit the title of a space (all users by default) to execute any Groovy code in the XWiki installation which compromises the confidentiality, integrity and availability of the whole XWiki installation.
To reproduce, as a user without script nor programming rights, create a document with title
{{/html}}{{async}}{{groovy}}println("Hello from Groovy Title!"){{/groovy}}{{/async}}and contentTest Document. Using the search UI, search for"Test Document", then deploy theLocationfacet on the right of the screen, next to the search results. The installation is vulnerable if you see an item such as:Patches
This has been patched in XWiki 14.10.20, 15.5.4 and 15.10 RC1.
Workarounds
Modify the
Main.SolrSpaceFacetpage following this patch.References