CVE-2022-43504

WordPress Core < 6.0.3 - Information Disclosure (Email Address)

2022-10-18 00:00

Toshitsugu Yoneyama of Mitsui Bussan Secure Directions, Inc. via JPCERT

Strategic Overview

Status: Patched in 3.7.40
Affected Core: WordPress 6.0
Affected Version: 3.6.1 – 6.0.2 · 25 branches
CVSS: 5.3Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2022-43504

At a glance

CVE-2022-43504 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the WordPress 6.0 WordPress release line, affecting 3.6.1 – 6.0.2 · 25 branches. 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 3.7.40; sites on affected versions should update now. Disclosed October 2022, reported by Toshitsugu Yoneyama of Mitsui Bussan Secure Directions, Inc. via JPCERT.

Vulnerability Overview

WordPress Core is vulnerable to Information Disclosure of in versions up to 6.0.3. When the post by email functionality is enabled, it may log post author's email addresses in a way that may be publicly accessible. This could make it possible for attackers to steal post author's email addresses and use that for further attacks.

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-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in WordPress 6.0 3.6.1 – 6.0.2 · 25 branches takes a caller who can reach the endpoint. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For WordPress 6.0 the fix is 3.7.40: builds 3.6.1 – 6.0.2 · 25 branches are affected, anything from 3.7.40 onward is not.

Remediation

Update to one of the following versions, or a newer patched version: 3.7.40, 3.8.40, 3.9.38, 4.0.37, 4.1.37, 4.2.34, 4.3.30, 4.4.29, 4.5.28, 4.6.25, 4.7.25, 4.8.21, 4.9.22, 5.0.18, 5.1.15, 5.2.17, 5.3.14, 5.4.12, 5.5.11, 5.6.10, 5.7.8, 5.8.6, 5.9.5, 6.0.3

How does WordSec protect against this?

The fix is the thing that ends this: updating to 3.7.40 is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-43504 https://www.wordfence.com/threat-intel/vulnerabilities/id/f0691a2a-734e-4726-97a1-9e0c796c2fb5 https://nvd.nist.gov/vuln/detail/CVE-2022-43504

Related records

Same weakness class

Other vulnerabilities in WordPress 6.0

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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