What is CVE-2022-4237?

CVE-2022-4237 is a high-severity vulnerability in Welcart E-Commerce, classified under CWE-502 DESERIALIZATION OF UNTRUSTED DATA. CVSS score: 8.8/10. Published 2023-01-02.

How severe is CVE-2022-4237?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2022-4237 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Welcart E-Commerce

CVE-2022-4237

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

Published 2023-01-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (63.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Welcart E-Commerce
Welcart E-Commerce — versions 0

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpscan.com/vulnerability/7a4b790c-49ae-46bc-9544-e188deae243f (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2022-4237?: CVE-2022-4237 is a high-severity vulnerability in Welcart E-Commerce, classified under CWE-502 DESERIALIZATION OF UNTRUSTED DATA. CVSS score: 8.8/10. Published 2023-01-02.
How severe is CVE-2022-4237?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2022-4237 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.