CVE-2020-36726

CRITICAL 9.8

Ultimate Reviews < 2.1.33 - PHP Object Injection

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-502
Vendor	rustaurius
Product	ultimate reviews
Published	Jun 7, 2023
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

rustaurius / Ultimate Reviews

0 < 2.1.33

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/db30acd7-ce51-45d9-8ff0-6ceea8237a8c?source=cve blog.nintechnet.com: https://blog.nintechnet.com/wordpress-ultimate-reviews-plugin-fixed-insecure-deserialization-vulnerability/ plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/2409141

Credits

Jerome Bruandet