Is CVE-2026-102388 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-102388 being exploited in the wild.

How severe is CVE-2026-102388?

High severity, with a CVSS score of 7.1, published 10 October 2026.

Which products and versions are affected?

WPMU DEV Forminator through 1.57.3.

Is there a fix for CVE-2026-102388?

Yes: fixed in 1.58.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-102388 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-102388?

Check whether you run WPMU DEV Forminator 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-2026-102388: WPMU DEV Forminator stored cross-site scripting

CVE-2026-102388 · Severity: high · CVSS 7.1 · Published 2026-10-10

WPMU DEV Forminator is a WordPress form builder plugin used to create and manage web forms on WordPress sites. This vulnerability allows attackers to inject malicious scripts into forms that execute in visitors' browsers, potentially stealing account credentials, session data, or sensitive information. Exploitation requires a privileged user to interact with a crafted payload.

Technologies: WPMU DEV Forminator. Vendors: WPMU DEV.

Quick answers

Is CVE-2026-102388 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-102388 being exploited in the wild.
How severe is CVE-2026-102388?: High severity, with a CVSS score of 7.1, published 10 October 2026.
Which products and versions are affected?: WPMU DEV Forminator through 1.57.3.
Is there a fix for CVE-2026-102388?: Yes: fixed in 1.58.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-102388 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-102388?: Check whether you run WPMU DEV Forminator 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.

How to fix

Fixed in: 1.58.0

Technical details

A stored cross-site scripting (XSS) vulnerability exists in Forminator that allows improper neutralization of input during web page generation. The vulnerability is unauthenticated in terms of network access but requires user interaction from a privileged user to execute the attack. Attackers can inject malicious scripts that persist in the form and execute in the browsers of visitors.

Affected products

WPMU DEV Forminator through 1.57.3

Timeline

2026-10-10: disclosed
2026-10-08: advisory

References

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