Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Addify | Request a Quote for WooCommerce | ≤ 2.9.2 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 2 repositories
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Wayang1337/CVE-2026-18143 ★ 1 · Sep 28, 2026
Request a Quote for WooCommerce (Addify) <= 2.9.2 Unauthenticated arbitrary file upload via afrfq_submit_quote_via_popup
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murrez/CVE-2026-18143 ★ 0 · Sep 26, 2026
Unauthenticated arbitrary file upload in Addify Request a Quote for WooCommerce ≤ 2.9.2 via public AJAX afrfq_submit_quote_via_popup — unsafe move_uploaded_file() with attacker-controlled .php filena…
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- Request Quote for WooCommerce <= 2.9.2 - Unauthenticated Arbitrary File Upload http/cves/2026/CVE-2026-18143.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.