Description
The WP Dropzone plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'callback' shortcode attribute in all versions up to, and including, 1.1.1. This is due to insufficient input sanitization and output escaping on user-supplied 'callback' attributes, which are evaluated as JavaScript code via the `new Function()` constructor. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
References5
- plugins.trac.wordpress.org/browser/wp-dropzone/tags/1.1.1/inclu…
- plugins.trac.wordpress.org/browser/wp-dropzone/tags/1.1.1/js/wp…
- plugins.trac.wordpress.org/browser/wp-dropzone/trunk/includes/c…
- plugins.trac.wordpress.org/browser/wp-dropzone/trunk/js/wp-drop…
- www.wordfence.com/threat-intel/vulnerabilities/id/23953909-4836…
Metrics
- CVSS 3.1
-
6.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 21 · as of 11 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.