CVE-2026-39579 HIGH

CVE-2026-39579: WordPress B Blocks plugin <= 2.0.31 - Privilege Escalation vulnerability

Vendor Bplugins
Product B Blocks
Weakness CWE-266
Published June 15, 2026
Last update June 15, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Contributor Privilege Escalation in B Blocks <= 2.0.31 versions.

Explanation of Vulnerability in Simple Terms

02Summary

B Blocks versions up to 2.0.31 contain an improper privilege escalation vulnerability. An authenticated user with low privileges can read sensitive data, modify site content, or disrupt service availability. The vulnerability requires only network access and valid login credentials. Site administrators should update to a version newer than 2.0.31 immediately.

What an attacker can do

03Attacker Capabilities

Read sensitive data, modify content, or disrupt site availability with a low-privilege account.

Potential impact on your site

04Site Impact

Any registered user can compromise site data, content integrity, or availability without elevated permissions.

Conditions required to exploit

05Prerequisites

Attacker must have a valid low-privilege user account on the site.

Key dates

06Disclosure timeline

June 15, 2026 CVE published
June 15, 2026 Record updated