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Vulnerabilities

Vulnerability · CVE-2026-4664

The Customer Reviews for WooCommerce plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 5.103.0.

Published Apr 10, 2026 · catalog updated Jun 17, 2026 · The Customer Reviews for

Check if you run it

No confirmed exploitation is on record for CVE-2026-4664. EPSS is 0.57%. Act only if a listed version of The Customer Reviews for is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The Customer Reviews for).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.57%
Remediation
Version ranges on file
Affected products
stated named in the record

The Customer Reviews for WooCommerce plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 5.103.0. This is due to the function comparing the user-supplied parameter against the order's meta value using strict equality ( ), without verifying that the stored key is non-empty. For orders where no review reminder email has been sent, the meta is not set, causing to return an empty string. An attacker can supply to match this empty value and bypass the permission check. This makes it possible for unauthenticated attackers to submit, modify, and inject product reviews on any product — including products not associated with the referenced order — via the REST API endpoint . Reviews are auto-approved by default since defaults to .

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated named in the record<= 5.103.0

How to fix CVE-2026-4664

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-4664. EPSS is 0.57%. Act only if a listed version of The Customer Reviews for is installed.

Which versions are affected?

Compare what you have installed with named in the record <= 5.103.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-287: Improper Authentication. EPSS 0.57%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 10, 2026 · NIST NVD

    Detected

    The Customer Reviews for WooCommerce plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 5.103.0. This is due to the function comparing the user-supplied parameter against the order's meta value using strict equality ( ), without verifying that the stored key is non-empty. For orders where no review reminder email has been sent, the meta is not set, ca

  2. Jun 17, 2026 · NIST NVD

    Updated

    The Customer Reviews for WooCommerce plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 5.103.0. This is due to the function comparing the user-supplied parameter against the order's meta value using strict equality ( ), without verifying that the stored key is non-empty. For orders where no review reminder email has been sent, the meta is not set, ca

Sources

  • CVE.orgVulnerability recordCVE-2026-4664

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-4664

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDVulnerability recordCVE-2026-4664

    The Customer Reviews for WooCommerce plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 5.103.0. This is due to the function comparing the user-supplied parameter against the order's `ivole_s

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.