CVE-2023-35876 HIGH

CVE-2023-35876: WordPress WooCommerce Square Plugin <= 3.8.1 is vulnerable to Insecure Direct Object References (IDOR)

Vendor Woocommerce

Product WooCommerce Square

Weakness CWE-639 · IDOR

Published December 20, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

8.1/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity None

CVSS vector

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

What the vulnerability does

01Description

Authorization Bypass Through User-Controlled Key vulnerability in WooCommerce WooCommerce Square.This issue affects WooCommerce Square: from n/a through 3.8.1.

Explanation of Vulnerability in Simple Terms

02Summary

WooCommerce Square versions up to 3.8.1 contain an authorization flaw that allows authenticated users with low privileges to read sensitive payment and order data, and disrupt service availability. The vulnerability stems from insufficient access controls on administrative functions. Attackers need a valid user account but no special permissions to exploit it.

What an attacker can do

03Attacker Capabilities

Read sensitive payment data and order information; disrupt service availability.

Potential impact on your site

04Site Impact

Customer payment records and order details may be exposed to any logged-in user; site availability may be compromised.

Conditions required to exploit

05Prerequisites

Valid WooCommerce user account with low or standard privileges; network access to the site.

Key dates

06Disclosure timeline

December 20, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-35876 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/639.html AskarLabs — CWE-639 write-up Authorization Bypass Through User-Controlled Key

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