WordPress plugin
Form Block 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
- High1
- Medium1
- Low0
All Form Block vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤1.8.1Update to 1.8.2 | CVE-2026-104814 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload ≤1.5.5Update to 1.5.6 | CVE-2025-54693 |
- High7.2Unauthenticated Stored Cross-Site Scripting
≤1.8.1Update to 1.8.2
- Critical9.8Unauthenticated Arbitrary File Upload
≤1.5.5Update to 1.5.6
Form Block: common questions
Does Form Block have known vulnerabilities?
Yes. VulnCrest Radar lists 3 known vulnerabilities in Form Block: 1 critical, 1 high, 1 medium. None are known to affect version null.
How do I check which version of Form Block 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 Form Block vulnerability?
CVE-2026-104814, published Oct 5, 2026: Form Block <= 1.8.1 - Unauthenticated Stored Cross-Site Scripting. Severity: High (CVSS 7.2).
Is any Form Block vulnerability listed in CISA KEV?
No. None of the known Form Block vulnerabilities is currently listed in the CISA KEV catalog.