Ninja Forms permits unauthenticated shortcode execution through submitted values
Ninja Forms from 3.14.10 through versions before 3.15.2 substitutes request-derived values into content that it later processes for shortcodes. An unauthenticated submitter can therefore execute any shortcode registered on the site, with the resulting access or state changes determined by the available shortcodes.
- Component
- Ninja Forms
- Plugin slug
ninja-forms- Affected
- 3.14.10 to < 3.15.2
- Safe version
3.15.2- Published
- Sep 06, 2026
This CVE was published Sep 06, 2026 and is one of 74 known issues for this plugin.
Update, patch or deactivate.
Update Ninja Forms to 3.15.2 or later and review exposed forms and shortcode-provided functionality. If an immediate update is not possible, deactivate affected forms or the plugin according to the site's risk profile.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Ninja Forms WordPress plugin from 3.14.10 before 3.15.2 does not prevent shortcodes in request-derived values from being executed when it substitutes them into content it later processes for shortcodes, allowing unauthenticated users to run any shortcode registered on the site.
CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N