Is CVE-2023-6875 actively exploited?

Yes. CVE-2023-6875 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2023-6875 be exploited remotely?

The attack vector of CVE-2023-6875 has not been classified yet.

What is the CVSS score of CVE-2023-6875?

CVE-2023-6875 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2023-6875

UNKNOWNCISA KEVIN THE WILD

CVE-2023-6875

Published: April 11, 2026

Official Description

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. CVE-2023-52233 appears to be a duplicate of this issue.

NVD Source

Technical Analysis

CVE-2023-6875 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2023-6875 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.