CVE-2026-66648 CRITICAL

CVE-2026-66648: WordPress Jawn theme <= 1.4.2 - Privilege Escalation vulnerability

Vendor Mvpthemes
Product Jawn
Weakness CWE-266
Published August 24, 2026
Last update August 24, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Unauthenticated Privilege Escalation in Jawn <= 1.4.2 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Jawn versions up to 1.4.2 contain a privilege assignment flaw that allows unauthenticated attackers to gain full control over the application. The vulnerability requires no user interaction and can be exploited remotely over the network. An attacker can read sensitive data, modify content, and disrupt service availability.

What an attacker can do

03Attacker Capabilities

Gain full administrative control of the application without authentication.

Potential impact on your site

04Site Impact

Complete compromise of the Jawn installation; attackers can read all data, modify or delete content, and take the site offline.

Conditions required to exploit

05Prerequisites

Network access to the Jawn application. No authentication or user interaction required.

Key dates

06Disclosure timeline

August 24, 2026 CVE published