CVE-2020-36726 - CVE House

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Status published Critical CVE-2020-36726

Ultimate Reviews < 2.1.33 - PHP Object Injection

9.8 CVSS

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Jerome Bruandet

References

More from rustaurius

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Affiliate AI Lite <= 1.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting

Five Star Restaurant Reservations – WordPress Booking Plugin <= 2.7.5 - Unauthenticated Stored Cross-Site Scripting

Front End Users <= 3.2.28 - Authenticated (Contributor+) Time-Based SQL Injection

Affected Vendor

rustaurius

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Affected Software

Ultimate Reviews

Vulnerable Versions:

0

Timeline

Official Publish: June 7th, 2023

Last Modified: April 8th, 2026

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1059 Command and Scripting Interpreter

T1505.003 Web Shell

T1105 Ingress Tool Transfer

Command and Control

T1068 Exploitation for Privilege Escalation

Privilege Escalation