CVE-2026-78296

FluentAuth – Login Security, Two-Factor Authentication, Passkeys & Social Login <= 2.1.2 - Unauthenticated Email Verification Bypass

2026-09-17 00:00

Strategic Overview

Status: Patched in 3.0.0
Affected Plugin: FluentAuth – Login Security, Two-Factor Authentication, Passkeys & Social Login
Affected Version: <= 2.1.2
CVSS: 5.3Medium
Weakness type: CWE-345 · Insufficient Verification of Data Authenticity
CVE: CVE-2026-78296

View all FluentAuth – Login Security, Two-Factor Authentication, Passkeys & Social Login vulnerabilities

At a glance

CVE-2026-78296 is a medium-severity Insufficient Verification of Data Authenticity vulnerability in the FluentAuth WordPress plugin, affecting versions <= 2.1.2. 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 3.0.0; sites on affected versions should update now. Disclosed September 2026, reported by Ahmed Embaby.

Vulnerability Overview

The FluentAuth – Login Security, Two-Factor Authentication, Passkeys & Social Login plugin for WordPress is vulnerable to email verification bypass in all versions up to, and including, 2.1.2. This makes it possible for unauthenticated attackers to bypass email verification when registering.

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-345: Insufficient Verification of Data Authenticity

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Remediation

Update to version 3.0.0, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: FluentAuth 3.0.0 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-78296 https://www.wordfence.com/threat-intel/vulnerabilities/id/e0916e67-7240-49b6-9c85-93bf9daf316b https://nvd.nist.gov/vuln/detail/CVE-2026-78296

Related records

Other vulnerabilities in FluentAuth – Login Security, Two-Factor Authentication, Passkeys & Social Login

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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