CVE-2022-2444

The Visualizer: Tables and Charts Manager for WordPress plugin for WordPress is vulnerable to deserialization of untrusted input via the remote_data parameter in versions up to, and including 3.7.9. This makes it possible for authenticated attackers with contributor privileges and above to call files using a PHAR wrapper that will deserialize the data and call arbitrary PHP Objects that can be used to perform a variety of malicious actions granted a POP chain is also present. It also requires that the attacker is successful in uploading a file with the serialized payload.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

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

• https://cwe.mitre.org/data/definitions/586.html

References

• https://github.com/Codeinwp/visualizer/blob/master/classes/Visualizer/Module/Chart.php#L1115
• https://github.com/Codeinwp/visualizer/blob/master/classes/Visualizer/Source/Csv.php
• https://github.com/Codeinwp/visualizer/compare/v3.7.9...v3.7.10
• https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=2752058%40visualizer\u0026new=2752058%40visualizer\u0026sfp_email=\u0026sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/d9606d92-8061-4dfc-a6e2-509b54613277?source=cve
• https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2444
• https://github.com/Codeinwp/visualizer/blob/master/classes/Visualizer/Module/Chart.php#L1115
• https://github.com/Codeinwp/visualizer/blob/master/classes/Visualizer/Source/Csv.php
• https://github.com/Codeinwp/visualizer/compare/v3.7.9...v3.7.10
• https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=2752058%40visualizer\u0026new=2752058%40visualizer\u0026sfp_email=\u0026sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/d9606d92-8061-4dfc-a6e2-509b54613277?source=cve
• https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2444