CVE-2023-23738

Spectra – WordPress Gutenberg Blocks <= 2.3.1 - Email Spoofing

2023-01-23 00:00

Strategic Overview

Status: Patched in 2.3.2
Affected Plugin: Spectra Legacy – Gutenberg Blocks
Affected Version: <= 2.3.1
CVSS: 5.3Medium
Weakness type: CWE-345 · Insufficient Verification of Data Authenticity
CVE: CVE-2023-23738

View all Spectra Legacy – Gutenberg Blocks vulnerabilities

At a glance

CVE-2023-23738 is a medium-severity Insufficient Verification of Data Authenticity vulnerability in the Spectra Legacy WordPress plugin, affecting versions <= 2.3.1. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.3.2; sites on affected versions should update now. Disclosed January 2023, reported by Dave Jong.

Vulnerability Overview

The Spectra – WordPress Gutenberg Blocks plugin for WordPress is vulnerable to email spoofing in versions up to, and including, 2.3.1. This is due to insufficient validation of content being sent to an email. This makes it possible for unauthenticated attackers to send emails to unsuspecting victims with spoofed content.

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 privileges on the target site, and no interaction from a victim user.

CWE-345: Insufficient Verification of Data Authenticity

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Remediation

Update to version 2.3.2, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: Spectra Legacy 2.3.2 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-23738 https://www.wordfence.com/threat-intel/vulnerabilities/id/e2f8cdd3-f873-42bd-9891-a63a398df846 https://nvd.nist.gov/vuln/detail/CVE-2023-23738

Related records

Other vulnerabilities in Spectra Legacy – Gutenberg Blocks

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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