Improper Access Control in Gutenberg Essential Blocks Plugin from WordPress
CVE-2026-13153

7.5HIGH

Key Information:

Vendor

WordPress
Status
Gutenberg Essential Blocks
Vendor
CVE Published:
6 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-13153?

The Gutenberg Essential Blocks plugin for WordPress prior to version 6.4.0 has a significant access control vulnerability, which allows unauthenticated users to retrieve sensitive sales metrics. Specifically, the plugin's public REST route permits an over-fetching of non-public WooCommerce information, exposing the lifetime sales figures for any published product. This exposure may lead to competitive disadvantages as unauthorized users can access sales data that should remain confidential.

Affected Version(s)

Gutenberg Essential Blocks 0 < 6.4.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-13153 - Proof of Concept

References

https://wpscan.com/vulnerability/0401a229-9630-49ab-ae4b-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Revanth Hari Narayana Matte
WPScan
.