CVE-2022-4047Public exploitNetwork attack vector

Unauthenticated RCE via unchecked AJAX file upload

Published Dec 26, 2022 · Updated Apr 14, 2025

Unrestricted file upload in WP Swings Return Refund and Exchange For WooCommerce before 4.0.9 allows remote attackers to execute code. The wps_rma_order_return_attach_files function accepts PHP attachments through the unauthenticated wps_rma_return_upload_files AJAX action without validating their file type. A nonce exposed on the WooCommerce cart page is sufficient to store a PHP payload under the web root and invoke it remotely.

CVSS severity9.8
Critical
EPSS probability6.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in WP Swings Return Refund and Exchange For WooCommerce before 4.0.9 allows remote attackers to execute code. The wps_rma_order_return_attach_files function accepts PHP attachments through the unauthenticated wps_rma_return_upload_files AJAX action without validating their file type. A nonce exposed on the WooCommerce cart page is sufficient to store a PHP payload under the web root and invoke it remotely.

The record

CVE
CVE-2022-4047
Published
Dec 26, 2022
Updated
Apr 14, 2025
Vendor
WP Swings
Product
Return Refund and Exchange For WooCommerce
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 26, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.0.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WP Swings · Return Refund and Exchange For WooCommerceversion=0 <4.0.9

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1505.003Server Software Component: Web Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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