Description
The Duplicate Post plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noti_token' parameter in all versions up to, and including, 1.5.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires that the site owner has enabled the plugin's User Level Permissions for the Subscriber role, as this grants access to the i_saw_this_noti AJAX branch needed to deliver the payload.
References8
- plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6…
- plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6…
- plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6…
- plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6…
- plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6…
- plugins.trac.wordpress.org/changeset/3709767/copy-delete-posts/…
- plugins.trac.wordpress.org/changeset?reponame=&new=3709767%40co…
- www.wordfence.com/threat-intel/vulnerabilities/id/c475c51e-f01d…
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: 15 · as of 10 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.