CVE-2024-30477 MEDIUM

CVE-2024-30477: WordPress Klarna Payments for WooCommerce plugin <= 3.2.4 - Broken Access Control vulnerability

Vendor Klarna
Product Klarna Payments for WooCommerce
Weakness CWE-862 · Missing authorization
Published March 29, 2024
Last update April 28, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Missing Authorization vulnerability in Klarna Klarna Payments for WooCommerce.This issue affects Klarna Payments for WooCommerce: from n/a through 3.2.4.

Explanation of Vulnerability in Simple Terms

02Summary

Klarna Payments for WooCommerce versions up to 3.2.4 lack proper authorization checks, allowing unauthenticated attackers to modify payment-related data. The vulnerability requires no user interaction and is exploitable over the network. An attacker can alter transaction details or payment settings without authentication, potentially affecting order integrity.

What an attacker can do

03Attacker Capabilities

Modify payment data or transaction details without authentication.

Potential impact on your site

04Site Impact

Attackers can alter payment records, orders, or settings, compromising transaction integrity and customer trust.

Conditions required to exploit

05Prerequisites

Network access to the WooCommerce site; no authentication or user interaction required.

Key dates

06Disclosure timeline

March 29, 2024 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE