CVE-2026-66648Network attack vector

Unauthenticated privilege escalation

Published Aug 24, 2026 · Updated Aug 24, 2026

Privilege escalation in MVP Themes Jawn 1.4.2 and earlier allows remote attackers to obtain elevated WordPress privileges without authentication. Public sources identify neither the affected code path nor the incorrect operation that assigns the elevated privilege. Exploitation requires a network-accessible WordPress site using the theme, and the exact privilege granted remains undisclosed.

CVSS severity9.8
Critical
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in MVP Themes Jawn 1.4.2 and earlier allows remote attackers to obtain elevated WordPress privileges without authentication. Public sources identify neither the affected code path nor the incorrect operation that assigns the elevated privilege. Exploitation requires a network-accessible WordPress site using the theme, and the exact privilege granted remains undisclosed.

The record

CVE
CVE-2026-66648
Published
Aug 24, 2026
Updated
Aug 24, 2026
Vendor
MVP Themes
Product
Jawn
Classifications
CWE-266, CAPEC-233, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 24, 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=n/a <=1.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MVP Themes · Jawnversion=n/a <=1.4.2

Published CVSS scores

9.8PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-266Incorrect Privilege Assignment
CAPEC-233Privilege Escalation
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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