| Package | Affected versions | Patched versions |
|---|---|---|
| org.xwiki.platform:xwiki-platform-attachment-ui | ≥ 14.0-rc-1, < 14.4-rc-1 | 14.4-rc-1 |
| xwiki | ≥ 14.0, < 14.3 | 14.3 |
It's possible to store JavaScript in an attachment name, which will be executed by anyone trying to move the corresponding attachment.
For example, an attachment with name ><img src=1 onerror=alert(1)>.jpg will execute the alert.
This issue has been patched in XWiki 14.4RC1.
It is possible to fix the vulnerability by copying moveStep1.vm to webapp/xwiki/templates/moveStep1.vm and replace
#set($titleToDisplay = $services.localization.render('attachment.move.title',
[$attachment.name, $escapetool.xml($doc.plainTitle), $doc.getURL()]))
by
#set($titleToDisplay = $services.localization.render('attachment.move.title', [
$escapetool.xml($attachment.name),
$escapetool.xml($doc.plainTitle),
$escapetool.xml($doc.getURL())
]))
See the corresponding patch.
If you have any questions or comments about this advisory:
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