CVE-2025-3623

The Uncanny Automator plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.4.0.1 via deserialization of untrusted input in the automator_api_decode_message() function. This makes it possible for unauthenticated to inject a PHP Object. The additional presence of a POP chain allows attackers to delete arbitrary files.

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://automatorplugin.com/knowledge-base/uncanny-automator-changelog/#6-4-0-2-2025-04-18
• https://plugins.trac.wordpress.org/browser/uncanny-automator/trunk/src/core/lib/helpers/class-automator-recipe-helpers.php#L540
• https://plugins.trac.wordpress.org/changeset/3276577/uncanny-automator/trunk/src/core/lib/helpers/class-automator-recipe-helpers.php
• https://wordpress.org/plugins/uncanny-automator/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/00bcfd8f-9785-449a-a0ea-16e2583d684a?source=cve