XWiki Platform vulnerable to stored cross-site scripting in ClassEditSheet page via name parameters

Impact

A stored XSS can be exploited by users with edit rights by adding a AppWithinMinutes.FormFieldCategoryClass class on a page and setting the payload on the page title.
Then, any user visiting /xwiki/bin/view/AppWithinMinutes/ClassEditSheet executes the payload.

See https://jira.xwiki.org/browse/XWIKI-20365 for me details.

Patches

The issue has been patched on XWiki 14.4.8, 14.10.4, and 15.0 ?

Workarounds

The issue can be fixed by updating AppWithinMinutes.ClassEditSheet with this patch.

References

• https://github.com/xwiki/xwiki-platform/commit/1b87fec1e5b5ec00b7a8c3c3f94f6c5e22547392#diff-79e725ec7125cced7d302e1a1f955a76745af26ef28a148981b810e85335d302
• https://jira.xwiki.org/browse/XWIKI-20365

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

Attribution

This vulnerability has been reported on Intigriti by René de Sain @renniepak.