How severe is CVE-2022-4237?

CVE-2022-4237 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-4237 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-4237?

CVE-2022-4237 affects Welcart Welcart E-commerce. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-4237?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-4237 published?

CVE-2022-4237 was published on 2023-01-02 and last updated on 2026-06-17.

CVE-2022-4237

CVE-2022-4237 is a high-severity vulnerability in Welcart Welcart E-commerce with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Welcart Welcart E-commerce
Published: 2023-01-02
Last modified: 2026-06-17

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

Frequently asked questions

What is 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
How severe is CVE-2022-4237?: CVE-2022-4237 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-4237 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4237?: CVE-2022-4237 affects Welcart Welcart E-commerce. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-4237?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-4237 published?: CVE-2022-4237 was published on 2023-01-02 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:welcart:welcart_e-commerce:*:*:*:*:*:wordpress:*:*

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