vulnerability
WordPress Plugin: wp-webhooks: CVE-2025-66073: Deserialization of Untrusted Data
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:M/Au:M/C:C/I:C/A:C) | Nov 26, 2025 | Dec 2, 2025 | Dec 2, 2025 |
Severity
8
CVSS
(AV:N/AC:M/Au:M/C:C/I:C/A:C)
Published
Nov 26, 2025
Added
Dec 2, 2025
Modified
Dec 2, 2025
Description
The Webhooks plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 3.3.8 via deserialization of untrusted input. This makes it possible for authenticated attackers, with administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. 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.
Solution
wp-webhooks-plugin-cve-2025-66073
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.