PT-2026-61955 · Saturday Drive · Ninja Forms

Pavel Kohout · CVE-2026-65052 · Published 2026-07-21 · Updated 2026-07-21

Mitre

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

Fix

Weakness Enumeration

CWE-472

Related Identifiers

CVE-2026-65052

Affected Products

Ninja Forms

References · 4

• https://wordpress.org/plugins/ninja-forms/changelog · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-65052 · Security Note
• https://wordpress.org/plugins/ninja-forms · Note
• https://vulncheck.com/advisories/ninja-forms-calculation-and-payment-total-tampering-via-fail-open-get-calc-value-in-listselect-and-listradio-fields · Note