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CVE-2022-36096: XWIKI-19613: Bad display in deleted attachments · xwiki/xwiki-platform@6705b0c
The XWiki Platform Index UI is an Index of all pages, attachments, orphans and deleted pages and attachments for XWiki Platform, a generic wiki platform. Prior to versions 13.10.6 and 14.3, it’s possible to store JavaScript which will be executed by anyone viewing the deleted attachments index with an attachment containing javascript in its name. This issue has been patched in XWiki 13.10.6 and 14.3. As a workaround, 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 fix commit.
@@ -333,13 +333,13 @@ if (typeof XWiki.index.trash.attachments == “undefined”) { */ XWiki.index.trash.attachments.displayEntry = function (row, i, table) { var tr = new Element(‘tr’); // The resulting table row var file = new Element(‘a’, {’href’ : row.url}).update(row.filename); var file = new Element(‘a’, {’href’ : row.url}).update((row.filename || ‘’).escapeHTML()); tr.appendChild(new Element(‘td’).update(file)); var doc = new Element(‘a’, {’href’ : row.documentUrl}).update(row.title); var doc = new Element(‘a’, {’href’ : row.documentUrl}).update((row.title || ‘’).escapeHTML()); doc.appendChild(document.createTextNode(' (' + row.docName + ')')); tr.appendChild(new Element(‘td’).update(doc)); tr.appendChild(new Element(‘td’).update(row.date)); var deleter = new Element(‘a’, {’href’ : row.deleterurl}).update(row.deletername); tr.appendChild(new Element(‘td’).update((row.date || ‘’).escapeHTML())); var deleter = new Element(‘a’, {’href’ : row.deleterurl}).update((row.deletername || ‘’).escapeHTML()); tr.appendChild(new Element(‘td’).update(deleter)); var actions = new Element(‘td’, {’class’ : 'itemActions’}); if(row.canDelete) {
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### 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 `><img src=1 onerror=alert(1)>.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](https://jira.xwiki.org/) * Email us at [Security Mailing List](mailto:[email protected])