CVE-2026-14291

Security Ninja (Premium) <= 5.289 - 2-Factor Authentication Bypass

2026-07-02 00:00

Strategic Overview

Status: Patched in 5.290
Affected Plugin: security-ninja-premium
Affected Version: <= 5.289
CVSS: 5.3Medium
Weakness type: CWE-287 · Improper Authentication
CVE: CVE-2026-14291

View all security-ninja-premium vulnerabilities

At a glance

CVE-2026-14291 is a medium-severity Improper Authentication vulnerability in the security-ninja-premium WordPress plugin, affecting versions <= 5.289. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 5.290; sites on affected versions should update now. Disclosed July 2026, reported by Adam Clinch.

Vulnerability Overview

The security-ninja-premium plugin for WordPress is vulnerable to 2-Factor Authentication Bypass in all versions up to, and including, 5.289. This makes it possible for unauthenticated attackers to bypass the second factor of authentication.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-287: Improper Authentication

Reaching this weakness in security-ninja-premium <= 5.289 takes a caller who can reach the endpoint. Improper authentication means the mechanism that proves who a caller is can be satisfied without the secret it was supposed to require.

An attacker authenticates as another user — administrators included — without ever knowing a password, so password policies and login rate limits never come into play. For security-ninja-premium the fix is 5.290: builds <= 5.289 are affected, anything from 5.290 onward is not.

Remediation

Update to version 5.290, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: security-ninja-premium 5.290 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-14291 https://www.wordfence.com/threat-intel/vulnerabilities/id/63530cc4-aa9e-4b7a-b320-519028dec540 https://nvd.nist.gov/vuln/detail/CVE-2026-14291

CVSS Vector

5.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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