Download Attachments <= 1.2.24 - Contributor+ Stored XSS

The plugin does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

PoC

[download-attachments container_class=‘" onmouseover=“alert(1)”’] Note: An Attachment in an Attachments metabox needs to be present