The Advanced Custom Fields: Extended plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 0.9.2.7 via the process. This makes it possible for unauthenticated attackers to extract sensitive data including the WordPress password hash of any user by injecting a {get_user} template tag that is resolved and written as a publicly readable term name. Exploitation requires that an administrator has configured a public [acfe_form] shortcode page with a Term action using a save.name field mapping — a supported and documented configuration.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No 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)
References 9
https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/m…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/m…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/m…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/m…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/t…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.7/includes/t…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset/3754818/acf-extended/trunk/include…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset?reponame=&new=3754818%40acf-extend…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/47eb0b74-66b0-4d7a-a5…
security@wordfence.com