CVE-2026-56071: WPMU DEV Forminator unauthenticated XSS

CVE-2026-56071 · Severity: high · CVSS 7.1 · Published 2026-06-25

Forminator is a popular WordPress plugin used to create forms, polls, and quizzes. A security vulnerability in versions 1.53.1 and earlier allows unauthenticated attackers to inject malicious scripts into the website. If a site visitor or administrator interacts with a compromised page, the attacker could redirect users to malicious sites, steal session information, or display unauthorized advertisements, potentially damaging the site's reputation and user security.

Technologies: WPMU DEV Forminator. Vendors: WPMU DEV.

Quick answers

Is CVE-2026-56071 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-56071 being exploited in the wild.
How severe is CVE-2026-56071?
High severity, with a CVSS score of 7.1, published 25 June 2026.
Which products and versions are affected?
WPMU DEV Forminator <= 1.53.1.
Is there a fix for CVE-2026-56071?
A patch was published on 2026-06-24: Fixed in version 1.53.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-56071 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-56071?
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.

Technical details

A Cross-Site Scripting (XSS) vulnerability exists in the WPMU DEV Forminator plugin for WordPress in versions up to and including 1.53.1. The flaw is caused by improper neutralization of user-supplied input during web page generation (CWE-79). An unauthenticated remote attacker can exploit this by tricking a user into performing an action, such as clicking a crafted link or visiting a specific page, to execute malicious JavaScript in the context of the victim's browser. This can lead to session hijacking or unauthorized actions performed on behalf of a privileged user. The issue is resolved in version 1.53.2.

Affected products

  • WPMU DEV Forminator <= 1.53.1

Timeline

  • 2026-05-06: other: Vulnerability reported by researcher daroo
  • 2026-06-24: patched: Fixed in version 1.53.2
  • 2026-06-25: disclosed: CVE published to NVD

References

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