CVE-2021-43270

HIGH

Datalust Seq.App.EmailPlus Cleartext Transmission of Sensitive Information via SMTP Port 25

Title source: llm

Description

Datalust Seq.App.EmailPlus (aka seq-app-htmlemail) 3.1.0-dev-00148, 3.1.0-dev-00170, and 3.1.0-dev-00176 can use cleartext SMTP on port 25 in some cases where encryption on port 465 was intended.

References (1)

Core 1

Core References

Patch, Third Party Advisory x_refsource_misc

https://github.com/datalust/seq-app-htmlemail/pull/93

Scores

CVSS v3 7.5

EPSS 0.0037

EPSS Percentile 28.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE

CWE-319

Status published

Products (1)

datalust/seq.app.emailplus 3.1.0 dev-00148 (3 CPE variants)

Published Nov 02, 2021

Tracked Since Feb 18, 2026