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CVE-2026-118235

9.8, critical

Wpazleen SimpleForm - Form Maker to Chat Apps with Quiz, Poll and Multi Lead Notifications Unrestricted Upload of File with Dangerous…

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
9.8, critical critical CVSS v3.1
EPSS, next 30 days
0.7% higher than 54.6% of scored CVEs
Exploitation
No public evidence
Published
31 Oct 2026yesterday

Description

The SimpleForm - Form Maker to Chat Apps with Quiz, Poll and Multi Lead Notifications plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 3.10.2 via the handle_upload function. This is due to missing server-side file key allowlist and pre-sanitization extension derivation that allows a trailing-dot filename to bypass all extension and MIME validation in handle_upload. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible. The only access control is a nonce that is printed into every public form's data-nonce attribute, making it trivially obtainable by any unauthenticated visitor on a page embedding the form shortcode.

Details

Vendor
Wpazleen
Product
SimpleForm - Form Maker to Chat Apps with Quiz, Poll and Multi Lead Notifications
Weakness
CWE-434 (opens in a new tab)
Status
Received
Updated
31 Oct 2026
Assigner
security@wordfence.com

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References 9

Other references 9

1 more

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Wpazleen CVEs

Every Wpazleen CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-104748 Wpazleen SimpleForm - Form Maker to Chat Apps with Quiz, Poll and Multi Lead Notifications Improper Privilege Management Vulnerability EPSS 0.8% 9.8, critical
  • CVE-2026-104764 Wpazleen Post Export Import with Media Deserialization of Untrusted Data Vulnerability EPSS 0.6% 7.2, high

Beyond this page

Is CVE-2026-118235 in your network?

This page tells you how dangerous CVE-2026-118235 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-118235 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 1 Nov 2026, not the live upstream state.