CVE-2023-6875

POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress <= 2.8.7 - Authorization Bypass via type connect-app API

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to unauthorized access of data and modification of data due to a type juggling issue on the connect-app REST endpoint in all versions up to, and including, 2.8.7. This makes it possible for unauthenticated attackers to reset the API key used to authenticate to the mailer and view logs, including password reset emails, allowing site takeover.

El complemento POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP para WordPress es vulnerable al acceso no autorizado a los datos y a la modificación de los mismos debido a un problema de malabarismo de tipos en el endpoint REST de la aplicación de conexión en todas las versiones hasta, e incluida, 2.8.7. Esto hace posible que atacantes no autenticados restablezcan la clave API utilizada para autenticarse en el correo y ver registros, incluidos los correos electrónicos de restablecimiento de contraseña, lo que permite tomar el control del sitio.

WordPress POST SMTP Mailer plugin versions 2.8.7 and below suffer from authorization bypass and cross site scripting vulnerabilities.

*Credits: Ulyses Saicha

CVSS Scores

NISTv3.1 9.8

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-12-15 CVE Reserved
2024-01-10 CVE Published
2024-01-13 First Exploit
2024-08-02 CVE Updated
2024-09-22 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-639: Authorization Bypass Through User-Controlled Key
CWE-862: Missing Authorization

CAPEC

References (7)

URL	Tag	Source
http://packetstormsecurity.com/files/176525/WordPress-POST-SMTP-Mailer-2.8.7-Authorization-Bypass-Cross-Site-Scripting.html	Third Party Advisory
https://plugins.trac.wordpress.org/browser/post-smtp/trunk/Postman/Mobile/includes/rest-api/v1/rest-api.php#L60	Issue Tracking
https://plugins.trac.wordpress.org/changeset/3016051/post-smtp/trunk?contextall=1&old=3012318&old_path=%2Fpost-smtp%2Ftrunk	Product
https://www.wordfence.com/threat-intel/vulnerabilities/id/e675d64c-cbb8-4f24-9b6f-2597a97b49af?source=cve	Third Party Advisory

URL	Date	SRC
https://github.com/gbrsh/CVE-2023-6875	2024-01-27
https://github.com/hatlesswizard/CVE-2023-6875	2024-02-05
https://github.com/UlyssesSaicha/CVE-2023-6875	2024-01-13

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Wpexperts Search vendor "Wpexperts"		Post Smtp Mailer Search vendor "Wpexperts" for product "Post Smtp Mailer"				<= 2.8.7 Search vendor "Wpexperts" for product "Post Smtp Mailer" and version " <= 2.8.7"		wordpress		Affected