CVE•Published 2023-06-07•Modified 2026-04-08•1 article on news•6 live references•NVD data

CVE-2020-36726Etoilewebdesign · Ultimate_reviews

Vulnerability data via NVD (ingested)

CVSS v3.1

9.8

CRITICAL

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

EPSS percentile

Exploit Prediction Scoring System · top 21% of all CVEs

Weaknesses (CWE)

CWE-502Deserialization of Untrusted Data

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.

Timeline

Published 2023-06-07

Modified 2026-04-08

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2020-36726

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · WP plugin path

http.html:"/wp-content/plugins/ultimate-reviews/"

Matches any site loading the "ultimate-reviews" plugin — doesn't rely on Shodan's vuln tag.

Shodan · product

product:"Etoilewebdesign Ultimate Reviews"

All exposed Etoilewebdesign Ultimate Reviews instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Ultimate Reviews"

HTTP body or banner mentions "Ultimate Reviews" — catches deploys Shodan didn't identify as a product.