CVE-2021-43270

HIGH
Published Nov 2, 20214y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Nov 2, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-319

Affected Products 3

VendorProductVersionRange
datalustseq.app.emailplus3.1.0any
datalustseq.app.emailplus3.1.0any
datalustseq.app.emailplus3.1.0any

References 1

  • github.com https://github.com/datalust/seq-app-htmlemail/pull/93
    PatchThird Party Advisory

Remediation

  • github.com https://github.com/datalust/seq-app-htmlemail/pull/93
    PatchThird Party Advisory