GMS-2022-6934: Creation of new database tables through login form on PostgreSQL

November 21, 2022

Impact

It’s possible to make XWiki create many new schemas and fill them with tables just by using a crafted user identifier in the login form.

Patches

The problem has been patched in XWiki 13.10.8, 14.6RC1 and 14.4.2.

Workarounds

The only workarounds for this are:

use an authenticator which does interpret the login as a reference to a document
using a different database than PostgreSQL
upgrade XWiki

References

https://jira.xwiki.org/browse/XWIKI-19886

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

github.com/advisories/GHSA-4x5r-6v26-7j4v
github.com/xwiki/xwiki-platform/security/advisories/GHSA-4x5r-6v26-7j4v

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