8.8

CVE-2022-4237: unknown welcart e-commerce Deserialization of Untrusted Data

CVSS: 8.8v3.1HighModified
Published 02-01-2023Last modified 10-04-2025
Open JSON

Vulnerability summary

CVE-2022-4237 is a high (CVSS 8.8) Deserialization of Untrusted Data vulnerability in unknown welcart e-commerce. EPSS estimates a 1.08% chance of exploitation in the next 30 days, higher than 64.7% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 2.8.6.

Overall risk
45/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
1.08%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 02-01-2023
    PublishedVulnerability first disclosed.
  2. 10-04-2025
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

1.08%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

+0.01 pp

From 1.07% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.08%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Unknown1 product
Welcart1 product
Wordpress1 product
  • usc-e-shop≤ 2.8.5 (fixed in 2.8.6)

3 vendors · 3 products

References

2 links