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CRITICAL9.1

GHSA-pwfv-3cvg-9m4c

org.xwiki.platform:xwiki-platform-oldcore makes Incorrect Use of Privileged APIs with DocumentAuthors

Quick fix

GHSA-pwfv-3cvg-9m4c — org.xwiki.platform:xwiki-platform-oldcore: upgrade to the fixed version with the command below.

# pom.xml: bump <version>14.10</version> for org.xwiki.platform:xwiki-platform-oldcore

Details

### Impact

The Document script API returns directly a DocumentAuthors allowing to set any authors to the document, which in consequence can allow subsequent executions of scripts since this author is used for checking rights. Example of such attack:

``` {{velocity}} $doc.setContent('{{velocity}}$xcontext.context.authorReference{{/velocity}}') $doc.authors.setContentAuthor('xwiki:XWiki.superadmin') $doc.getRenderedContent() {{/velocity}} ```

### Patches The problem has been patched in XWiki 14.10 and 14.4.7 by returning a safe script API.

### Workarounds There no easy workaround apart of upgrading.

### References

* https://jira.xwiki.org/browse/XWIKI-20380 * https://github.com/xwiki/xwiki-platform/commit/905cdd7c421dbf8c565557cdc773ab1aa9028f83

### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira](https://jira.xwiki.org) * Email us at [security ML](mailto:security@xwiki.org)

Are you affected?

Enter the version of the package you're using.

Affected packages

Maven/org.xwiki.platform:xwiki-platform-oldcore
Introduced in: 14.5Fixed in: 14.10
Fix# pom.xml: bump <version>14.10</version> for org.xwiki.platform:xwiki-platform-oldcore
Maven/org.xwiki.platform:xwiki-platform-oldcore
Introduced in: 14.4.1Fixed in: 14.4.7
Fix# pom.xml: bump <version>14.4.7</version> for org.xwiki.platform:xwiki-platform-oldcore

References