CVE-2026-65052

Ninja Forms Calculation and Payment Total Tampering via Fail-Open get_calc_value in ListSelect and ListRadio Fields

Published Jul 21, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Saturday Drive
Saturday Drive ninja Forms
Wordpress
Wordpress wordpress
Vendors & Products Saturday Drive
Saturday Drive ninja Forms
Wordpress
Wordpress wordpress
Type Values Removed Values Added
First Time appeared Ninjaforms
Ninjaforms ninja Forms
CPEs cpe:2.3:a:ninjaforms:ninja_forms:*:*:*:*:*:wordpress:*:*
Vendors & Products Ninjaforms
Ninjaforms ninja Forms
Type Values Removed Values Added
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.
Title Ninja Forms Calculation and Payment Total Tampering via Fail-Open get_calc_value in ListSelect and ListRadio Fields
Weaknesses CWE-472
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jul 22, 2026, 2:57 PM
Reserved
Jul 21, 2026, 2:05 PM
Status
Deferred
Published
Jul 21, 2026, 3:16 PM
Modified
Oct 24, 2026, 8:10 PM