CVE-2026-18143: critical vulnerability in Addify Request a Quote for WooCommerce
Request a Quote for WooCommerce <= 2.9.2 - Unauthenticated Arbitrary File Upload via AJAX Popup Handler
Published
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85Vexday Risk Score
Patch now. It exploitation observed in the wild and has a working public exploit.
ssvc Actcvss 9.8epss 2.1%
from disclosure to weaponsame day
Published on NVDSep 26
1st PoCSep 26
Observed exploitation+2d
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Addify · Request a Quote for WooCommercepublic PoCs found — 3
githubgithub.com/Wayang1337/CVE-2026-18143★ 1githubgithub.com/ghannyxploit404/CVE-2026-18143★ 0githubgithub.com/murrez/CVE-2026-18143★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.