The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 6.1.1 via the 'data' parameter parameter. This makes it possible for authenticated attackers, with editor-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The intended strpos()-based guard against leaving the uploads directory is bypassed by crafting a URL that includes the uploads base path as a substring while embedding directory traversal sequences, such as /wp-content/uploads/../../wp-config.php.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
themeum:kirki – freeform page builder, website builder & customizer
References 12
https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/includes/Ajax.php#…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/includes/Ajax/Expo…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/includes/Ajax/Expo…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/includes/Ajax/Expo…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/includes/Ajax/Expo…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/Ajax.php#L…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/Ajax/Expor…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/Ajax/Expor…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/Ajax/Expor…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/kirki/tags/6.1.1/includes/Ajax/Expor…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset?reponame=&old=3629933%40kirki&new=…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/d8ecb2c6-c2d0-44b0-b9…
security@wordfence.com