CVE-2020-36718

The GDPR CCPA Compliance Support plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.3 via deserialization of untrusted input njt_gdpr_allow_permissions value. This allows unauthenticated attackers to inject a PHP Object.

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://blog.nintechnet.com/gdpr-ccpa-compliance-support-plugin-fixed-insecure-deserialization-vulnerability/
• https://plugins.trac.wordpress.org/changeset/2408938
• https://plugins.trac.wordpress.org/changeset/2411356/ninja-gdpr-compliance
• https://wordpress.org/plugins/ninja-gdpr-compliance/#developers
• https://wpscan.com/vulnerability/92f1d6fb-c665-419e-a13b-688b1df6c395
• https://www.wordfence.com/threat-intel/vulnerabilities/id/a2871261-3231-4a52-9a38-bb3caf461e7d?source=cve
• https://blog.nintechnet.com/gdpr-ccpa-compliance-support-plugin-fixed-insecure-deserialization-vulnerability/
• https://plugins.trac.wordpress.org/changeset/2408938
• https://plugins.trac.wordpress.org/changeset/2411356/ninja-gdpr-compliance
• https://wordpress.org/plugins/ninja-gdpr-compliance/#developers
• https://wpscan.com/vulnerability/92f1d6fb-c665-419e-a13b-688b1df6c395
• https://www.wordfence.com/threat-intel/vulnerabilities/id/a2871261-3231-4a52-9a38-bb3caf461e7d?source=cve