The Post Grid and Gutenberg Blocks – ComboBlocks plugin for WordPress is vulnerable to Unauthenticated Hook Injection in versions 2.2.32 to 2.3.1 via several functions in the ~/includes/blocks/form-wrap/function.php file. This makes it possible for unauthenticated attackers to execute actions with hooks in WordPress, granted no other security controls are present in the function.
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
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 4
https://plugins.trac.wordpress.org/browser/post-grid/trunk/includes/blocks/form…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/post-grid/trunk/includes/blocks/form…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/post-grid/trunk/includes/blocks/form…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/ec8666d4-042e-4cf4-86…
security@wordfence.com