What the vulnerability does
01Description
The Enable jQuery Migrate Helper plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `downgrade_jquery_version()` function in all versions up to, and including, 1.4.1. This is due to the function only verifying a nonce without checking user capabilities. This makes it possible for authenticated attackers, with Subscriber-level access and above, to downgrade the site-wide jQuery version from 3.7.1 to the legacy 1.12.4-wp release, which has knowns security vulnerabilities.
Explanation of Vulnerability in Simple Terms
02Summary
Enable jQuery Migrate Helper versions up to 1.4.1 lack proper authorization checks, allowing authenticated users to modify site data they should not have access to. An attacker with a low-privilege account can change settings or content without the appropriate permissions. Update to a version newer than 1.4.1 to resolve this issue.
What an attacker can do
03Attacker Capabilities
Modify site data or settings without proper authorization.
Potential impact on your site
04Site Impact
Unauthorized changes to site configuration or content by low-privilege users.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account on the site.
Key dates
06Disclosure timeline
May 27, 2026
CVE published
May 27, 2026
Record updated
