Exploited vulnerability

CVE-2026-3279

TLP:CLEAR

Missing Authorization

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.

Facts

Vendor: clorith
Product: Enable jQuery Migrate Helper
EPSS (probability of exploitation within 30 days): 0.3 %
First known exploitation: 13 October 2026
First seen by Risk Letters: 13 October 2026

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD