org.xwiki.platform:xwiki-platform-attachment-ui vulnerable to Code Injection

Impact

A registered user can perform remote code execution leading to privilege escalation by injecting the proper code in the “property” field of an attachment selector, as a gadget of their own dashboard. Note that the vulnerability does not impact comments of a wiki.

Patches

The vulnerability has been patched in XWiki 13.10.11, 14.4.8, 14.10.2, 15.0-rc-1.

Workarounds

The problem can be worked around by applying following changes directly in XWiki.AttachmentSelector page: https://github.com/xwiki/xwiki-platform/commit/5e8725b4272cd3e5be09d3ca84273be2da6869c1.

References

• https://jira.xwiki.org/browse/XWIKI-20364
• https://github.com/xwiki/xwiki-platform/commit/5e8725b4272cd3e5be09d3ca84273be2da6869c1

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