CVE-2026-1058

Form Maker by 10Web <= 1.15.35 - Unauthenticated Stored Cross-Site Scripting via Hidden Field

2026-02-02 18:21
Supakiad S. (m3ez) (m3ez)

Strategic Overview

Status
Patched in 1.15.36
Affected Plugin
Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder
Affected Version
<= 1.15.35
CVSS
7.1High
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2026-1058
View all Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder vulnerabilities

At a glance

CVE-2026-1058 is a high-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Form Maker by 10Web WordPress plugin, affecting versions <= 1.15.35. It carries a CVSS score of 7.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.15.36; sites on affected versions should update now. Disclosed February 2026, reported by Supakiad S. (m3ez) (m3ez).

Vulnerability Overview

The Form Maker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via hidden field values in all versions up to, and including, 1.15.35. This is due to insufficient output escaping when displaying hidden field values in the admin submissions list. The plugin uses html_entity_decode() on user-supplied hidden field values without subsequent escaping before output, which converts HTML entity-encoded payloads back into executable JavaScript. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in the admin submissions view that will execute whenever an administrator accesses the submissions list.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Form Maker by 10Web <= 1.15.35 carries this weakness at html_entity_decode(), and reaching it takes no account at all. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Form Maker by 10Web the fix is 1.15.36: builds <= 1.15.35 are affected, anything from 1.15.36 onward is not.

Remediation

Update to version 1.15.36, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Form Maker by 10Web 1.15.36 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-1058https://www.wordfence.com/threat-intel/vulnerabilities/id/e0ec0027-2792-4069-b413-8fdd951f5fe7https://nvd.nist.gov/vuln/detail/CVE-2026-1058

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C