WordPress plugin
Postie security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 6 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical0
- High1
- Medium5
- Low0
All Postie vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.4 | Unauthenticated Stored Cross-Site Scripting via Email Body URL Autolink ≤1.9.87Update to 1.9.88 | CVE-2026-100175 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤1.9.73Update to 1.9.74 | CVE-2025-63020 | |
| Medium4.4 | Authenticated (Admin+) Stored Cross-Site Scripting ≤1.9.70Update to 1.9.71 | CVE-2024-5200 | |
| Medium5.3 | Post Submission Spoofing & Stored Cross-Site Scripting <1.9.41Update to 1.9.41 | CVE-2019-20203 | |
| Medium5.4 | Cross-Site Scripting <1.9.41Update to 1.9.41 | CVE-2019-20204 | |
| High7.2 | Cross-Site Scripting ≤1.4.9Update to 1.4.10 | CVE-2012-2580 |
- Medium5.4Unauthenticated Stored Cross-Site Scripting via Email Body URL Autolink
≤1.9.87Update to 1.9.88
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤1.9.73Update to 1.9.74
- Medium4.4Authenticated (Admin+) Stored Cross-Site Scripting
≤1.9.70Update to 1.9.71
- Medium5.3Post Submission Spoofing & Stored Cross-Site Scripting
<1.9.41Update to 1.9.41
- Medium5.4Cross-Site Scripting
<1.9.41Update to 1.9.41
- High7.2Cross-Site Scripting
≤1.4.9Update to 1.4.10
Postie: common questions
Does Postie have known vulnerabilities?
Yes. VulnCrest Radar lists 6 known vulnerabilities in Postie: 1 high, 5 medium. None are known to affect version null.
How do I check which version of Postie 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 Postie vulnerability?
CVE-2026-100175, published Oct 27, 2026: Postie <= 1.9.87 - Unauthenticated Stored Cross-Site Scripting via Email Body URL Autolink. Severity: Medium (CVSS 5.4).
Is any Postie vulnerability listed in CISA KEV?
No. None of the known Postie vulnerabilities is currently listed in the CISA KEV catalog.