CVE-2023-6875
CVSS v3
9.8
CRITICAL
EPSS Score
90.3 %
exploit probability, as of 2026-10-03
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2024-01-11
Frequently asked questions
What is CVE-2023-6875?
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.
Is CVE-2023-6875 actively exploited?
Active exploitation of CVE-2023-6875 has not been confirmed. Its EPSS score was 90.3% on 2026-10-03, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2023-6875?
CVE-2023-6875 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2023-6875 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 50 free checks/month · Free API key
Other 2023 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).