Ultimate Reviews < 2.1.33 - PHP Object Injection

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2020-36726
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-06-07 02:15:12 UTC
Updated2026-04-08 19:17:36 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

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

EPSS: 0.010670000 probability, percentile 0.776920000 (date 2026-04-09)

Problem Types: CWE-502 | CWE-502 CWE-502 Deserialization of Untrusted Data

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1[email protected]Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Etoilewebdesign Ultimate Reviews All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Rustaurius Ultimate Reviews affected 2.1.33 semver Not specified

References

ReferenceSourceLinkTags
Ultimate Reviews < 2.1.33 - PHP Object Injection af854a3a-2127-422b-91ae-364da2661108 www.wordfence.com Third Party Advisory
WordPress Ultimate Reviews plugin fixed insecure deserialization vulnerability. – NinTechNet af854a3a-2127-422b-91ae-364da2661108 blog.nintechnet.com Exploit
403 Forbidden af854a3a-2127-422b-91ae-364da2661108 plugins.trac.wordpress.org Release Notes
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Jerome Bruandet (en)

Additional Advisory Data

SourceTimeEvent
CNA2020-11-10T00:00:00.000ZDisclosed
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