---
id: CVE-2026-18143
title: >-
  The Request a Quote for WooCommerce plugin for WordPress is vulnerable to
  Arbitrary File Upload in all versions up to, and including, 2.9.2 via the
  `afrfq_submit_quote_via_popup()` function
summary: >-
  The Request a Quote for WooCommerce plugin for WordPress is vulnerable to
  Arbitrary File Upload in all versions up to, and including, 2.9.2 via the
  `afrfq_submit_quote_via_popup()` function. This is due to missing file
  extension and MIME…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-434
vendor: Addify
product: Request a Quote for WooCommerce
affected:
  - request_a_quote_for_woocommerce <= 2.9.2
published: '2026-09-26'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T23:16:34.427'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18143'
references:
  - url: 'https://woocommerce.com/products/request-a-quote-plugin-for-woocommerce/'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/3417ec27-6abf-45c7-945f-6ef456ba1187?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
  - exploit-available
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-26T22:43:49.202450Z'
epss: 0.00413
epssPercentile: 0.32983
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/murrez/CVE-2026-18143'
  checkedAt: '2026-09-26T23:40:02.227Z'
exploitAvailable: true
ingestedAt: '2026-09-26T07:27:44.119Z'
---

## Overview

The Request a Quote for WooCommerce plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.9.2 via the `afrfq_submit_quote_via_popup()` function. This is due to missing file extension and MIME type validation in the popup upload handler, which uses the raw attacker-supplied filename directly as the destination for `move_uploaded_file()`. This makes it possible for unauthenticated attackers to upload executable files, such as PHP files, to a web-accessible temporary RFQ upload directory when a public quote rule with the multi-page popup flow is enabled.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.