Is CVE-2026-25431 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-25431 being exploited in the wild.

How severe is CVE-2026-25431?

Medium severity, with a CVSS score of 5.3, published 12 May 2026.

Which products and versions are affected?

WPMU DEV Hustle through 7.8.10.1.

Is there a fix for CVE-2026-25431?

A patch was published on 2026-05-12: Version 7.8.10.2 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-25431 attacked?

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

Am I affected by CVE-2026-25431?

Check whether you run WPMU DEV Hustle 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-2026-25431: WPMU DEV Hustle missing authorization in access control

CVE-2026-25431 · Severity: medium · CVSS 5.3 · Published 2026-05-12

WPMU DEV Hustle, a popular WordPress plugin used for creating pop-ups, slide-ins, and email marketing forms, contains a security flaw in its access control settings. This vulnerability allows unauthorized individuals to bypass intended security levels and perform actions that should be restricted to administrators. While the impact is considered low, it could allow attackers to interfere with the plugin's configuration or marketing campaigns.

Technologies: WPMU DEV Hustle. Vendors: WPMU DEV.

Quick answers

Is CVE-2026-25431 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-25431 being exploited in the wild.
How severe is CVE-2026-25431?: Medium severity, with a CVSS score of 5.3, published 12 May 2026.
Which products and versions are affected?: WPMU DEV Hustle through 7.8.10.1.
Is there a fix for CVE-2026-25431?: A patch was published on 2026-05-12: Version 7.8.10.2 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-25431 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-25431?: Check whether you run WPMU DEV Hustle 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 missing authorization vulnerability (CWE-862) exists in the WPMU DEV Hustle plugin for WordPress through version 7.8.10.1. The flaw stems from insufficient validation of user permissions when interacting with certain plugin functions, allowing unauthenticated attackers to exploit incorrectly configured access control security levels. An attacker can leverage this to execute actions that should require higher privileges, potentially modifying plugin settings or data. The issue is resolved in version 7.8.10.2.

Affected products

WPMU DEV Hustle through 7.8.10.1

Timeline

2025-12-26: other: Reported by Bao - BlueRock
2026-05-12: disclosed: Published by Patchstack
2026-05-12: patched: Version 7.8.10.2 released

References

https://patchstack.com/database/wordpress/plugin/wordpress-popup/vulnerability/wordpress-hustle-plugin-7-8-10-1-broken-access-control-vulnerability?_s_id=cve

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