CVE-2020-36726

Name: CVE-2020-36726
Creator: NVD / NIST
Published: 2023-06-07T02:15:12.617+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.57%

Last modified Jun 17, 2026

CVE-2020-36726 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 1.57% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.57%

72.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Etoilewebdesign	Ultimate Reviews	<= 2.1.32

References

Timeline

Published: Jun 7, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-36726?

How severe is CVE-2020-36726?

CVE-2020-36726 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.57% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36726?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-36726?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST