CVE-2024-7027

WooCommerce - PDF Vouchers <= 4.9.3 - Authentication Bypass to Voucher Vendor

2024-07-23 00:00
István Márton

Strategic Overview

Status
Patched in 4.9.4
Affected Plugin
WooCommerce - PDF Vouchers
Affected Version
<= 4.9.3
CVSS
7.3High
Weakness type
CWE-288 · Authentication Bypass Using an Alternate Path or Channel
CVE
CVE-2024-7027
View all WooCommerce - PDF Vouchers vulnerabilities

At a glance

CVE-2024-7027 is a high-severity Authentication Bypass Using an Alternate Path or Channel vulnerability in the WooCommerce - PDF Vouchers WordPress plugin, affecting versions <= 4.9.3. It carries a CVSS score of 7.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.9.4; sites on affected versions should update now. Disclosed July 2024, reported by István Márton.

Vulnerability Overview

The WooCommerce - PDF Vouchers plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 4.9.3. This is due to insufficient verification on the user being supplied during a QR code login through the plugin. This makes it possible for unauthenticated attackers to log in as any existing Voucher Vendor user on the site, if they have access to the user id.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-288: Authentication Bypass Using an Alternate Path or Channel

Reaching this weakness in WooCommerce - PDF Vouchers <= 4.9.3 takes a caller who can reach the endpoint. Authentication bypass through an alternate path means the application has a second route to a protected action that skips the checks the primary route performs.

The protection on the main path becomes irrelevant, because the attacker simply uses the route that never asks. For WooCommerce - PDF Vouchers the fix is 4.9.4: builds <= 4.9.3 are affected, anything from 4.9.4 onward is not.

Remediation

Update to version 4.9.4, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: WooCommerce - PDF Vouchers 4.9.4 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-7027https://www.wordfence.com/threat-intel/vulnerabilities/id/b6cf27d9-c0be-4cff-8867-19297f6d79d7https://nvd.nist.gov/vuln/detail/CVE-2024-7027

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C