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Fencer Intel
critical 9.8

CVE-2022-4047 json

Return Refund and Exchange For WooCommerce < 4.0.9 - Unauthenticated Arbitrary File Upload

published 3y ago modified 4mo ago also EUVD-2022-51424

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
6.6%
EPSS 6.6% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

The Return Refund and Exchange For WooCommerce WordPress plugin before 4.0.9 does not validate attachment files to be uploaded via an AJAX action available to unauthenticated users, which could allow them to upload arbitrary files such as PHP and lead to RCE

Patch / fix

  • Unknown Return Refund and Exchange For WooCommerce 4.0.9

Is CVE-2022-4047 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
last yr.

Exploit prediction

6.58% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/8965a87c-5fe5-4b39-88f3-e00966ca1d94 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Unknown Return Refund and Exchange For WooCommerce

Classification

Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.