A critical security vulnerability, identified as CVE-2023-47244, has been discovered in Omnisend Email Marketing for WooCommerce, a popular email marketing tool for online stores. This security issue, classified as exposure of sensitive information to an unauthorized actor, affects versions from n/a through 1.13.8. In this post, we will go through the details of this vulnerability, its potential impact, and the steps needed to mitigate risks associated with it.

Affected Software

Omnisend Email Marketing for WooCommerce by Omnisend
Versions affected: n/a through 1.13.8

Vulnerability Description

The vulnerability arises because the plugin does not properly validate or authorize certain user inputs, resulting in unauthorized access to sensitive data. An attacker could potentially exploit this vulnerability by sending malicious requests to the vulnerable application, which would lead to the unintended exposure of sensitive information. This could potentially include customer details, email lists, and other critical data that could be misused for phishing attacks, identity theft, or other malicious purposes.

Exploit Details

To exploit this vulnerability, an attacker would need to craft a specially formatted request, which could involve the manipulation of data input or parameters sent to the targeted application. A code snippet demonstrating a potential exploit might look like this:

# Exploit code to demonstrate the potential exploitation of CVE-2023-47244
import requests

# Target URL of the vulnerable application
target_url = "http://your-target-website-url.com";
vulnerable_endpoint = "/wp-admin/admin-ajax.php"

# Malicious request parameters
payload = {
    "action": "omnisend_email_marketing_vulnerable_action",
    "parameter1": "malicious_data",
    "parameter2": "more_malicious_data"

# Send the exploit request
response = requests.post(target_url + vulnerable_endpoint, data=payload)

if response.status_code == 200:
    print("Potential exploit successful. Sensitive data received:")
    print("Exploit failed.")

Original References

- Omnisend Security Advisory
- National Vulnerability Database (NVD) Entry
- CVE Details Page

Mitigation Steps

To address this vulnerability and protect your sensitive data, we recommend immediately updating your Omnisend Email Marketing for WooCommerce plugin to the latest version available (1.13.9 or higher), which contains necessary patches for this security issue. You can update the plugin through your WordPress admin panel or by downloading the update directly from the Omnisend plugin page.

In addition to updating the plugin, it is also essential to follow best security practices, such as regularly updating all software, implementing strong access controls, monitoring your systems for any unusual activities, and using relevant security tools to proactively protect your online assets.


CVE-2023-47244 is a critical vulnerability that could lead to the exposure of sensitive data in Omnisend Email Marketing for WooCommerce. To mitigate this risk, it is crucial to update your plugin to the latest version, adhere to security best practices, and proactively monitor your systems. By being vigilant and acting quickly to address security issues like this, you can safeguard your sensitive data and protect your online assets.


Published on: 11/23/2023 21:15:07 UTC
Last modified on: 11/30/2023 16:43:06 UTC