CVE-2026-15256
Medium
Description
The Ninja Forms WordPress plugin before 3.14.10 does not prevent user-supplied query-string input, used to pre-populate a form field's default value, from being processed as a shortcode, allowing unauthenticated attackers to execute arbitrary shortcodes registered on the site when a form so configured is embedded on a public page.
SeverityMedium
CVSS4.8
Exploit probability—
Product
Ninja Forms
PublishedAug 6, 2026
First seenAug 6, 2026
Weakness typeCWE-74Injection
How to fix
Update
- Ninja Forms3.14.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Ninja Forms | v < 3.14.10 | 3.14.10 |
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