Vulnerability in Saturday Drive Ninja Forms
CVE-2026-65052
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (47.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Saturday Drive Ninja Forms — versions 0, 3.14.9
Weakness classification (CWE)
References
- wordpress.org/plugins/ninja-forms/ (product)
- wordpress.org/plugins/ninja-forms/changelog/ (patch)
- www.vulncheck.com/advisories/ninja-forms-calculation-and-payment-total-tamperin… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-65052?
- CVE-2026-65052 is a high-severity vulnerability in Saturday Drive Ninja Forms, classified under CWE-472. CVSS score: 7.5/10. Published 2026-07-21.
- How severe is CVE-2026-65052?
- High severity. CVSS v3 base score is 7.5 out of 10.