CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What the vulnerability does
The Ultimate Reviews plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.1.32 via deserialization of untrusted input in several vulnerable functions. This allows unauthenticated attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin.
Explanation of Vulnerability in Simple Terms
Ultimate Reviews versions before 2.1.33 contain a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code on the site. The vulnerability exists in how the plugin processes untrusted serialized data without proper validation. An attacker can exploit this remotely over the network without requiring user interaction or authentication.
What an attacker can do
Run their own code on the site with full privileges (remote code execution).
Potential impact on your site
Complete site compromise: attackers can steal data, modify content, create admin accounts, or take the site offline.
Conditions required to exploit
Network access only; no authentication or user interaction required.
Key dates
External resources
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