Is CVE-2026-103998 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-103998 being exploited in the wild.

How severe is CVE-2026-103998?

Medium severity, with a CVSS score of 6.1, published 10 October 2026.

Which products and versions are affected?

10Web Form Maker up to 1.15.48.

Is there a fix for CVE-2026-103998?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-103998 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-103998?

Check whether you run 10Web Form Maker at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-103998: Form Maker by 10Web reflected cross-site script in inputs parameter

CVE-2026-103998 · Severity: medium · CVSS 6.1 · Published 2026-10-10

Form Maker by 10Web is a WordPress plugin for creating contact forms. The plugin is vulnerable to reflected cross-site scripting (XSS), allowing attackers to inject malicious scripts that execute in users' browsers. An attacker could trick users into clicking a malicious link to steal credentials, session tokens, or perform actions on their behalf.

Technologies: 10Web Form Maker. Vendors: 10Web.

Quick answers

Is CVE-2026-103998 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-103998 being exploited in the wild.
How severe is CVE-2026-103998?: Medium severity, with a CVSS score of 6.1, published 10 October 2026.
Which products and versions are affected?: 10Web Form Maker up to 1.15.48.
Is there a fix for CVE-2026-103998?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-103998 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-103998?: Check whether you run 10Web Form Maker at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The plugin fails to properly sanitize and escape the 'inputs' array parameter, allowing reflected XSS injection. An unauthenticated attacker can craft a malicious URL containing arbitrary JavaScript that executes in the victim's browser when clicked. No authentication or special preconditions are required beyond social engineering to trick a user into visiting the crafted link.

Affected products

10Web Form Maker up to 1.15.48

Timeline

2026-10-10: disclosed

References

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