CVE-2023-6629: saadiqbal post smtp – complete email deliverability and smtp solution with email logs, alerts, backup smtp & mobile app Cross-site Scripting

Vulnerability summary

CVE-2023-6629 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in saadiqbal post smtp – complete email deliverability and smtp solution with email logs, alerts, backup smtp & mobile app. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.3% of scored vulnerabilities.

Timeline

1. 03-01-2024
   PublishedVulnerability first disclosed.
2. 08-04-2026
   Last modifiedVulnerability information updated.

Description

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.

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.