Remote Code Execution Vulnerability in Spectra Gutenberg Blocks Plugin for WordPress
CVE-2026-7465

8.8HIGH

Key Information:

Vendor

WordPress
Status
Spectra Gutenberg Blocks – Website Builder For The Block Editor
Vendor
CVE Published:
30 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7465?

The Spectra Gutenberg Blocks plugin for WordPress presents a vulnerability that allows authenticated attackers with Contributor-level access or higher to execute arbitrary code on the server. The exploit hinges on a two-block payload embedded within post content. The first block creates a deceptive block type with an attacker-defined render_callback, while the second block triggers this callback via call_user_func() during the rendering process of the same page request, potentially compromising the website's integrity.

Affected Version(s)

Spectra Gutenberg Blocks – Website Builder for the Block Editor 0 <= 2.19.25

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-2026-7465
Created by izxci

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/ultimate-addon...
https://plugins.trac.wordpress.org/browser/ultimate-addon...

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Supanat Konprom
.