CVE-2023-6042

Getwid – Gutenberg Blocks <= 2.0.2 - Improper Input Validation to Arbitrary Email Sending to Admin

2023-12-15 00:00

Strategic Overview

Status: Patched in 2.0.3
Affected Plugin: Getwid – Gutenberg Blocks
Affected Version: <= 2.0.2
CVSS: 5.3Medium
Weakness type: CWE-20 · Improper Input Validation
CVE: CVE-2023-6042

View all Getwid – Gutenberg Blocks vulnerabilities

At a glance

CVE-2023-6042 is a medium-severity Improper Input Validation vulnerability in the Getwid WordPress plugin, affecting versions <= 2.0.2. 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 2.0.3; sites on affected versions should update now. Disclosed December 2023, reported by Krzysztof Zając.

Vulnerability Overview

The Getwid – Gutenberg Blocks plugin for WordPress is vulnerable to unauthorized arbitrary email sending due to insufficient limitations on the content of emails sent in all versions up to, and including, 2.0.2. This makes it possible for unauthenticated attackers to send emails to the site admin with arbitrary content from the site.

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-20: Improper Input Validation

Reaching this weakness in Getwid <= 2.0.2 takes a caller who can reach the endpoint. Improper input validation means the application accepts input without confirming it has the form, type or range the code downstream assumes.

The concrete impact depends on where the unvalidated value lands, which is why records in this class range from cosmetic bugs to full compromise. For Getwid the fix is 2.0.3: builds <= 2.0.2 are affected, anything from 2.0.3 onward is not.

Remediation

Update to version 2.0.3, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Getwid: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Getwid 2.0.3 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-6042 https://www.wordfence.com/threat-intel/vulnerabilities/id/1158081c-97da-4026-be16-994f4e41c92f https://nvd.nist.gov/vuln/detail/CVE-2023-6042

Related records

Other vulnerabilities in Getwid – 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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