The Podlove Podcast Publisher plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the create_link_item function in all versions up to, and including, 4.5.3. This makes it possible for authenticated attackers, with contributor-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). A viable POP chain exists within the plugin itself via Podlove\ImageCache\GenerationGuard, whose __destruct() method invokes wp_delete_file() with an attacker-controlled file path populated through unserialization.
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
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 8
https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpr…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpr…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpr…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpr…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpr…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/podlove-podcasting-plugin-for-wordpr…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset?reponame=&old=3648110%40podlove-po…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/3aa6fd71-337f-4998-a1…
security@wordfence.com