CVE-2026-3279 json
Enable jQuery Migrate Helper <= 1.4.1 - Missing Authorization to Authenticated (Subscriber+) jQuery Version Downgrade
published 2026-05-27 5 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-32099
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
Affected products
- clorith Enable jQuery Migrate Helper
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/1a74d5f4-1dd8-4d49-b4ce-8ba7ac9cbcc7?source=cve
- plugins.trac.wordpress.org /browser/enable-jquery-migrate-helper/tags/1.4.1/class-jquery-migrate-helper.php#L225
- plugins.trac.wordpress.org /browser/enable-jquery-migrate-helper/tags/1.4.1/class-jquery-migrate-helper.php#L256
- plugins.trac.wordpress.org /browser/enable-jquery-migrate-helper/trunk/class-jquery-migrate-helper.php#L225
- plugins.trac.wordpress.org /browser/enable-jquery-migrate-helper/trunk/class-jquery-migrate-helper.php#L256
Sources
- CVE List CVE-2026-3279
- NVD CVE-2026-3279
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.