WordPress plugin
Blog Designer – Post and Widget 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.
- Critical1
- High0
- Medium2
- Low0
All Blog Designer – Post and Widget vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Critical9.8 | Injected Backdoor 2.9.1 – 2.9.1Update to 2.9.1.1 | CVE-2026-6443 | |
| Medium5.3 | Missing Authorization to Notice Dismissal ≤2.7Update to 2.8 | CVE-2023-40200 | |
| Medium6.4 | Post and Widget <= 2.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode ≤2.3Update to 2.4 | CVE-2022-4793 |
- Critical9.8Injected Backdoor
2.9.1 – 2.9.1Update to 2.9.1.1
- Medium5.3Missing Authorization to Notice Dismissal
≤2.7Update to 2.8
- Medium6.4Post and Widget <= 2.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
≤2.3Update to 2.4
Blog Designer – Post and Widget: common questions
Does Blog Designer – Post and Widget have known vulnerabilities?
Yes. VulnCrest Radar lists 3 known vulnerabilities in Blog Designer – Post and Widget: 1 critical, 2 medium. None are known to affect version null.
How do I check which version of Blog Designer – Post and Widget 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 Blog Designer – Post and Widget vulnerability?
CVE-2026-6443, published Apr 9, 2026: Essentialplugin Plugins (Various Versions) - Injected Backdoor. Severity: Critical (CVSS 9.8).
Is any Blog Designer – Post and Widget vulnerability listed in CISA KEV?
No. None of the known Blog Designer – Post and Widget vulnerabilities is currently listed in the CISA KEV catalog.