CVE-2023-51471Network attack vector

Unauthenticated arbitrary site-option updates via missing capability check

Published Apr 24, 2024 · Updated Apr 28, 2026

Improper authentication in Mestres do WP Checkout Mestres WP 7.1.9.7 and earlier allows remote attackers to update arbitrary site options. Published advisories do not name the affected function; they state that it accepts requests without a required WordPress capability check. No account or user interaction is required, and the established impact is unauthorized configuration modification rather than data disclosure.

CVSS severity8.2
High
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper authentication in Mestres do WP Checkout Mestres WP 7.1.9.7 and earlier allows remote attackers to update arbitrary site options. Published advisories do not name the affected function; they state that it accepts requests without a required WordPress capability check. No account or user interaction is required, and the established impact is unauthorized configuration modification rather than data disclosure.

The record

CVE
CVE-2023-51471
Published
Apr 24, 2024
Updated
Apr 28, 2026
Vendor
Mestres do WP
Product
Checkout Mestres do WP for WooCommerce
Classifications
CWE-287, CAPEC-1
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=- <=7.1.9.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mestres do WP · Checkout Mestres do WP for WooCommerceversion=- <=7.1.9.7
Mestres do WP · Checkout Mestres WPversion=n/a <=7.1.9.7 changes=[{"at":"7.1.9.8","status":"unaffected"}]

Published CVSS scores

8.2PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
CAPEC-1Accessing Functionality Not Properly Constrained by ACLs

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo