The GiveWP WordPress plugin before 4.16.9 does not remove shortcode delimiters from donor-supplied values before rendering them on public pages, and the shortcode stripping it applies can be defeated by nesting, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.
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
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
unknown:givewp