CVE-2026-65052 Details
Description
Ninja Forms WordPress plugin version 3.14.8 and prior contains an improper input validation vulnerability that allows unauthenticated attackers to inject arbitrary numeric values into form calculations and payment totals by submitting values that do not match any configured option in ListSelect or ListRadio fields. Attackers can tamper with form submission payloads to the ajax submit endpoint, causing the get_calc_value() method to fail open and return attacker-controlled values, enabling manipulation of payment amounts to zero or arbitrary figures and bypassing admin-configured pricing logic.
A vulnerability exists in the Ninja Forms WordPress plugin in versions through 3.14.8, allowing unauthenticated attackers to exploit improper input validation. The flaw enables the injection of arbitrary numeric values into form calculations and payment totals by submitting values that do not correspond with any configured options in ListSelect or ListRadio fields. Exploitation involves tampering with form submission payloads sent to the AJAX submit endpoint, which causes the get_calc_value() method to fail open and return attacker-controlled values. This manipulation can override payment amounts, reducing them to zero or altering them to arbitrary figures, thereby bypassing the pricing logic set by administrators.
Users are advised to update the Ninja Forms WordPress plugin to version 3.14.9 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 21, 2026CISA-ADP
Assessed Jul 22, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-472 | External Control of Assumed-Immutable Web Parameter | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Ninja Forms | <= 3.14.8 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 22, 2026 | CVE Modified | CISA-ADP |
| Jul 21, 2026 | New CVE Received | [email protected] |