CVE-2026-3279
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.
Does this matter?
Lower severity and a low EPSS score (0.28%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.28% probability · 20th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Source
- security@wordfence.com
EPSS 0.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://plugins.trac.wordpress.org/browser/enable-jquery-migrate-helper/tags/1.4.1/class-jquery-migrate-helper.php#L225
- https://plugins.trac.wordpress.org/browser/enable-jquery-migrate-helper/tags/1.4.1/class-jquery-migrate-helper.php#L256
- https://plugins.trac.wordpress.org/browser/enable-jquery-migrate-helper/trunk/class-jquery-migrate-helper.php#L225
- https://plugins.trac.wordpress.org/browser/enable-jquery-migrate-helper/trunk/class-jquery-migrate-helper.php#L256
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1a74d5f4-1dd8-4d49-b4ce-8ba7ac9cbcc7?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.