CVE-2024-3054

WPvivid Backup & Migration Plugin for WordPress is vulnerable to PHAR Deserialization in all versions up to, and including, 0.9.99 via deserialization of untrusted input at the wpvividstg_get_custom_exclude_path_free action. This is due to the plugin not providing sufficient path validation on the tree_node[node][id] parameter. This makes it possible for authenticated attackers, with admin-level access and above, to call files using a PHAR wrapper that will deserialize the data and call arbitrary PHP Objects. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

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://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3067224%40wpvivid-backuprestore\u0026new=3067224%40wpvivid-backuprestore\u0026sfp_email=\u0026sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/bf26fc68-9fd4-4e4e-b34f-c947d95891f9?source=cve
• https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3067224%40wpvivid-backuprestore\u0026new=3067224%40wpvivid-backuprestore\u0026sfp_email=\u0026sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/bf26fc68-9fd4-4e4e-b34f-c947d95891f9?source=cve