The Post Duplicator plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `duplicate_post()` function in all versions up to, and including, 3.0.11. This is due to the function not verifying that the user has `edit_others_posts` capability before accepting a `selectedAuthorId` parameter via the `duplicate-post` REST endpoint. This makes it possible for authenticated attackers, with Contributor-level access and above, to create duplicated posts attributed to any user, including administrators.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
metaphorcreations:post duplicator
References 5
https://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.p…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.p…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.p…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset/3485579/
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/64553742-ff2b-40e9-92…
security@wordfence.com