Analytical use of cookies
CVE-2023-6629: post smtp vulnerability
CVE-2023-6629: medium vulnerability affecting post smtp. Check CVSS, KEV status, business impact and recommended administrator actions.
- CVSS
- 6.1 MEDIUM
- EPSS
- 36.16%
- Known exploited
- not in KEV
- Product
- post smtp
What is known
The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘msg’ parameter in all versions up to, and including, 2.8.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. CVE-2023-6621 appears to be a duplicate of this issue. CVE-2024-29128 appears to be a duplicate of this issue.
Business impact
Successful exploitation of CVE-2023-6629, a medium vulnerability (CVSS 6.1) affecting post smtp, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.
Recommended administrator action
Confirm whether post smtp is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.