CVE-2026-65052 Ninja Forms Calculation and Payment Total Tampering via Fail-Open get_calc_value in ListSelect and ListRadio Fields
Unauthenticated attackers can manipulate form calculations and payment totals by injecting invalid values into ListSelect or ListRadio fields, bypassing pricing logic.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-65052?
CVE-2026-65052 is a high-severity vulnerability in Saturday Drive Ninja Forms, published on 21 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-472
Which versions are affected by CVE-2026-65052?
How do I fix CVE-2026-65052?
No fix has been published for CVE-2026-65052 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-65052 being exploited?
There is no known exploitation of CVE-2026-65052 in the wild and no public exploit code.
Sources
Also known as GHSA-w952-x9hc-f66c.