WordPress plugin
LetterPress – Email Marketing, SMTP, Newsletter & Multi-Brand Subscriber Manager security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 3 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical0
- High0
- Medium3
- Low0
All LetterPress – Email Marketing, SMTP, Newsletter & Multi-Brand Subscriber Manager vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.4 | Authenticated (Administrator+) Stored Cross-Site Scripting ≤2.3.0Update to 2.4.0 | CVE-2024-3586 | |
| Medium4.3 | Cross-Site Request Forgery <2.4.0Update to 2.4.0 | CVE-2024-3590 | |
| Medium4.4 | Authenticated (Administrator+) Stored Cross-Site Scripting via settings ≤1.2.2Update to 2.4.0 | CVE-2023-27415 |
- Medium4.4Authenticated (Administrator+) Stored Cross-Site Scripting
≤2.3.0Update to 2.4.0
- Medium4.3Cross-Site Request Forgery
<2.4.0Update to 2.4.0
- Medium4.4Authenticated (Administrator+) Stored Cross-Site Scripting via settings
≤1.2.2Update to 2.4.0
LetterPress – Email Marketing, SMTP, Newsletter & Multi-Brand Subscriber Manager: common questions
Does LetterPress – Email Marketing, SMTP, Newsletter & Multi-Brand Subscriber Manager have known vulnerabilities?
Yes. VulnCrest Radar lists 3 known vulnerabilities in LetterPress – Email Marketing, SMTP, Newsletter & Multi-Brand Subscriber Manager: 3 medium. None are known to affect version null.
How do I check which version of LetterPress – Email Marketing, SMTP, Newsletter & Multi-Brand Subscriber Manager I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent LetterPress – Email Marketing, SMTP, Newsletter & Multi-Brand Subscriber Manager vulnerability?
CVE-2024-3586, published Oct 27, 2026: LetterPress <= 2.3.0 - Authenticated (Administrator+) Stored Cross-Site Scripting. Severity: Medium (CVSS 4.4).
Is any LetterPress – Email Marketing, SMTP, Newsletter & Multi-Brand Subscriber Manager vulnerability listed in CISA KEV?
No. None of the known LetterPress – Email Marketing, SMTP, Newsletter & Multi-Brand Subscriber Manager vulnerabilities is currently listed in the CISA KEV catalog.