CVE-2026-3279Network attack vector

Subscriber-level jQuery downgrade via missing capability check

Published May 27, 2026 · Updated May 27, 2026

Missing authorization in Clorith Enable jQuery Migrate Helper 1.4.1 and earlier allows remote authenticated users to downgrade jQuery. The downgrade_jquery_version() function treats a valid nonce as sufficient authorization and writes the site-wide jQuery setting without checking user capabilities. Subscriber-level access exposes the action, permitting a change from jQuery 3.7.1 to the legacy 1.12.4-wp release.

CVSS severity6.5
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Clorith Enable jQuery Migrate Helper 1.4.1 and earlier allows remote authenticated users to downgrade jQuery. The downgrade_jquery_version() function treats a valid nonce as sufficient authorization and writes the site-wide jQuery setting without checking user capabilities. Subscriber-level access exposes the action, permitting a change from jQuery 3.7.1 to the legacy 1.12.4-wp release.

The record

CVE
CVE-2026-3279
Published
May 27, 2026
Updated
May 27, 2026
Vendor
Clorith
Product
Enable jQuery Migrate Helper
Classifications
CWE-862, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Clorith · Enable jQuery Migrate Helperversion=0 <=1.4.1

Published CVSS scores

6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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