The GiveWP – Donation Plugin and Fundraising Platform plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.16.3 via deserialization of untrusted input from the give_company_name parameter. This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows attackers to achieve remote code execution.
Weakness
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Givewp | Givewp | * | 3.16.4 (excluding) |
Potential Mitigations
- Make fields transient to protect them from deserialization.
- An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.
Related Attack Patterns
References
- https://plugins.trac.wordpress.org/browser/give/tags/3.16.2/src/Donations/Repositories/DonationRepository.php?rev=3157829
- https://plugins.trac.wordpress.org/changeset/3166836/give/tags/3.16.4/includes/process-donation.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b8eb3aa9-fe60-48b6-aa24-7873dd68b47e?source=cve