Enable jQuery Migrate Helper <= 1.4.1 - Missing Authorization to Authenticated (Subscriber+) jQuery Version Downgrade
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-3279
- 2026-10-03 Alias added: GHSA-hcmf-56qp-ghh2
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1a74d5f4-1dd8-4d49-b4ce-8ba7ac9cbcc7?source=cve
- 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
Sources
- CVE-2026-3279 · CVE Program
- CVE-2026-3279 · NVD
- FIRST EPSS
- GHSA-hcmf-56qp-ghh2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences