Datalust · Datalust Seq.App.Emailplus · CVE-2021-43270
**Name of the Vulnerable Software and Affected Versions**
Datalust Seq.App.EmailPlus (aka seq-app-htmlemail) versions 3.1.0-dev-00148 through 3.1.0-dev-00176
**Description**
The issue arises when Datalust Seq.App.EmailPlus uses cleartext SMTP on port 25 in cases where encryption on port 465 was intended. This can potentially expose sensitive information.
**Recommendations**
For versions 3.1.0-dev-00148 through 3.1.0-dev-00176, consider configuring the application to use encrypted SMTP on port 465 to prevent the use of cleartext SMTP on port 25.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.