CVE-2026-65051
MEDIUMDescription
Ninja Forms WordPress plugin version 3.14.8 contains a client-side enforcement of server-side security vulnerability that allows unauthenticated attackers to bypass all form validation by merging attacker-controlled field metadata over server-loaded form definitions before validation runs. Attackers can craft a malicious AJAX submission overriding field types, removing required flags, and disabling CAPTCHA checks through the nopriv AJAX endpoint to trigger form actions such as email notifications and database storage with unverified, attacker-controlled content.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Exploit Intelligence
Low risk: more likely to be exploited than 20% of all known CVEs.
References
Related Vulnerabilities
Other CWE-602 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2020-8162 | High | 7.5 | 3.0% | - | Fix |
| CVE-2024-23666 | High | 7.5 | 2.7% | - | Fix |
| CVE-2014-2374 | High | 7.5 | 1.9% | - | - |
| CVE-2014-2373 | High | 7.5 | 1.8% | - | - |
| CVE-2020-24683 | Critical | 9.8 | 1.5% | - | - |
| CVE-2022-20658 | Critical | 9.6 | 1.4% | - | - |
Common questions
How do I fix CVE-2026-65051?
No published fix for CVE-2026-65051 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-65051 being actively exploited?
Not that we know of. CVE-2026-65051 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.28% is the estimated probability that it will be exploited in the next 30 days. That is higher than 20% of all scored CVEs.
How severe is CVE-2026-65051?
CVE-2026-65051 has a CVSS v3 base score of 6.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-23.