CVE-2022-0345

Better Notifications for WP <= 1.8.6 - Email Address Disclosure

2022-01-31 00:00

Strategic Overview

Status: Patched in 1.8.7
Affected Plugin: Customize WordPress Emails and Alerts – Better Notifications for WP
Affected Version: < 1.8.7
CVSS: 4.3Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2022-0345

View all Customize WordPress Emails and Alerts – Better Notifications for WP vulnerabilities

At a glance

CVE-2022-0345 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the Customize WordPress Emails and Alerts WordPress plugin, affecting versions < 1.8.7. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The issue is fixed in version 1.8.7; sites on affected versions should update now. Disclosed January 2022, reported by Krzysztof Zając.

Vulnerability Overview

The Customize WordPress Emails and Alerts WordPress plugin before 1.8.7 does not have authorisation and CSRF check in its bnfw_search_users AJAX action, allowing any authenticated users to call it and query for user e-mail prefixes (finding the first letter, then the second one, then the third one etc.).

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 interaction from a victim user.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in Customize WordPress Emails and Alerts < 1.8.7 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 Customize WordPress Emails and Alerts the fix is 1.8.7: builds < 1.8.7 are affected, anything from 1.8.7 onward is not.

Remediation

Update to version 1.8.7, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: Customize WordPress Emails and Alerts 1.8.7 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-0345 https://www.wordfence.com/threat-intel/vulnerabilities/id/c675f883-7e6f-43c3-a901-82ed2d2b3772 https://nvd.nist.gov/vuln/detail/CVE-2022-0345

Related records

Other vulnerabilities in Customize WordPress Emails and Alerts – Better Notifications for WP

CVSS Vector

4.3

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

Base

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

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