CVE-2020-36726

Ultimate Reviews < 2.1.33 - PHP Object Injection

9.8 Critical

CVE-2020-36726 is a critical vulnerability (CVSS 9.8) in Etoilewebdesign Ultimate Reviews, published June 7, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.55%, the 75th percentile. No source names a fixed version.

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.55%Up 1.5 points since Jun 7, 2023

What each source reports

CVE List Score used 9.8

Ultimate Reviews < 2.1.33 - PHP Object Injection

Record: CVE-2020-36726
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

EUVDEUVD-2020-24168 9.8

Record: EUVD-2020-24168
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-p7jf-6m2v-3ffq 9.8

The Ultimate Reviews plugin for WordPress is vulnerable to PHP Object Injection in versions up to...

Record: GHSA-p7jf-6m2v-3ffq
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

NVD 9.8

Record: CVE-2020-36726
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

Affected products

History

History
When	Changed	Sources
2026-11-02	created	CVE List, EUVD, GitHub Advisories, NVD