CVE-2026-19861
Medium
Description
The JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.2 does not properly sanitise and escape a form field's value before including it in the HTML notification emails it sends, allowing unauthenticated users to inject arbitrary HTML into messages delivered to administrators and other recipients. Whether injected script executes depends on the recipient's mail client, but the injected markup is rendered regardless.
SeverityMedium
CVSS4.7
Exploit probability—
ProductJetFormBuilder — Dynamic Blocks Form Builder
PublishedSep 5, 2026
First seenSep 5, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- JetFormBuilder — Dynamic Blocks Form Builder3.6.5.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| JetFormBuilder — Dynamic Blocks Form Builder | v < 3.6.5.2 | 3.6.5.2 |
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