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Vulnerability record · CVE-2022-4237 · published 2 January 2023

CVE-2022-4237: Welcart e-commerce vulnerability

Welcart · Welcart E Commerce

The Welcart e-Commerce WordPress plugin before 2.8.6 does not validate user input before using it in file_exist() functions via various AJAX actions available to any authenticated users, which could allow users with a role as low as subscriber to perform PHAR deserialisation when they can upload a file and a suitable gadget chain is present on the blog

8.8 CVSS 3.1 High EPSS 1.1% · top 36.4%
8.8CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The Welcart e-Commerce WordPress plugin before 2.8.6 does not validate user input before using it in file_exist() functions via various AJAX actions available to any authenticated users, which could allow users with a role as low as subscriber to perform PHAR deserialisation when they can upload a file and a suitable gadget chain is present on the blog

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://wpscan.com/vulnerability/7a4b790c-49ae-46bc-9544-e188deae243f ExploitThird Party Advisory
https://wpscan.com/vulnerability/7a4b790c-49ae-46bc-9544-e188deae243f ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-5952Welcart e-commerce vulnerabilityThe Welcart e-Commerce WordPress plugin before 2.9.5 unserializes user input from cookies, which could allow unautehtniacted users to perform PHP Obj…EPSS 1.3%9.8CVE-2022-41840Welcart e-commerce path traversal vulnerabilityUnauth. Directory Traversal vulnerability in Welcart eCommerce plugin <= 2.7.7 on WordPress.EPSS 5.5%8.8CVE-2025-27130Welcart e-commerce deserialization of untrusted data vulnerabilityWelcart e-Commerce 2.11.6 and earlier versions contains an untrusted data deserialization vulnerability. If this vulnerability is exploited, arbitrar…EPSS 0.45%8.8CVE-2024-42404Welcart e-commerce sql injection vulnerabilitySQL injection vulnerability in Welcart e-Commerce prior to 2.11.2 allows an attacker who can login to the product to obtain or alter the information …EPSS 0.48%8.8CVE-2023-5953Welcart e-commerce unrestricted file upload vulnerabilityThe Welcart e-Commerce WordPress plugin before 2.9.5 does not validate files to be uploaded, as well as does not have authorisation and CSRF in an AJ…EPSS 0.48%8.8CVE-2023-43610Welcart e-commerce sql injection vulnerabilitySQL injection vulnerability in Order Data Edit page of Welcart e-Commerce versions 2.7 to 2.8.21 allows a user with editor (without setting authority…EPSS 1.2%8.8CVE-2020-28339Welcart e-commerce deserialization of untrusted data vulnerabilityThe usc-e-shop (aka Collne Welcart e-Commerce) plugin before 1.9.36 for WordPress allows Object Injection because of usces_unserialize. There is not …EPSS 1.9%7.5CVE-2022-4140Welcart e-commerce vulnerabilityThe Welcart e-Commerce WordPress plugin before 2.8.5 does not validate user input before using it to output the content of a file, which could allow …EPSS 2.9%

Source: NIST National Vulnerability Database (record CVE-2022-4237), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.