CVE-2026-39579

bBlocks – Essential Gutenberg Blocks & Patterns Collection <= 2.0.31 - Authenticated (Contributor+) Privilege Escalation

2026-04-16 00:00

Strategic Overview

Status: Patched in 2.0.32
Affected Plugin: bBlocks – Essential Gutenberg Blocks & Patterns Collection
Affected Version: <= 2.0.31
CVSS: 8.8High
Weakness type: CWE-266 · Incorrect Privilege Assignment
CVE: CVE-2026-39579

View all bBlocks – Essential Gutenberg Blocks & Patterns Collection vulnerabilities

At a glance

CVE-2026-39579 is a high-severity Incorrect Privilege Assignment vulnerability in the bBlocks WordPress plugin, affecting versions <= 2.0.31. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 2.0.32; sites on affected versions should update now. Disclosed April 2026, reported by Abu Hurayra (HurayraIIT).

Vulnerability Overview

The bBlocks – Essential Gutenberg Blocks & Patterns Collection plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 2.0.31. This makes it possible for authenticated attackers, with Contributor-level access and above, to elevate their privileges to that of an administrator.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-266: Incorrect Privilege Assignment

A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

Remediation

Update to version 2.0.32, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: bBlocks 2.0.32 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-39579 https://www.wordfence.com/threat-intel/vulnerabilities/id/89218de3-7bb9-42f5-86d8-48d28c380231 https://nvd.nist.gov/vuln/detail/CVE-2026-39579

Related records

Other vulnerabilities in bBlocks – Essential Gutenberg Blocks & Patterns Collection

CVSS Vector

8.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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