XWiki Platform vulnerable to Cross-site Scripting in the deleted attachments list

Impact

It’s possible to store a JavaScript which will be executed by anyone viewing the deleted attachments index with an attachment containing javascript in its name.

For example, attachment a file with name &gt;<img src>.jpg will execute the alert.

Patches

This issue has been patched in XWiki 13.10.6 and 14.3.

Workarounds

It is possible to modify fix the vulnerability by editing the wiki page XWiki.DeletedAttachments with the object editor, open the JavaScriptExtension object and apply on the content the changes that can be found on the commit https://github.com/xwiki/xwiki-platform/commit/6705b0cd0289d1c90ed354bd4ecc1508c4b25745.

References

• https://jira.xwiki.org/browse/XWIKI-19613

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