CRITICAL

CVE-2026-84251

CVSS v3

9.8

CRITICAL

EPSS Score

—

exploit probability

CISA KEV

known exploited

Exploitation

—

SSVC status

Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-84251 yet.

Full record on NVD

Description

The click5 CRM add-on to Ninja Forms WordPress plugin through 1.0.1 does not have authorisation and CSRF checks when updating options via a REST endpoint, and does not ensure that the option to be updated belongs to the click5 CRM add-on to Ninja Forms WordPress plugin through 1.0.1. As a result, unauthenticated attackers could change arbitrary blog options, allowing them to create a new administrator account and take over the site.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2026-10-11
Last Modified: 2026-10-11

Frequently asked questions

What is CVE-2026-84251?

Is CVE-2026-84251 actively exploited?

Active exploitation of CVE-2026-84251 has not been confirmed.

What is the CVSS score for CVE-2026-84251?

CVE-2026-84251 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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