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CVE-2026-103514

7.5 HIGH

Published 2026-10-03 · Updated 2026-10-06

AI risk analysis

Summary
The WP 2FA WordPress plugin fails to invalidate used time-based one-time passcodes, allowing attackers to replay valid codes and bypass two-factor authentication. This creates a persistent backdoor for authenticated users to gain unauthorized access to administrator accounts.
Exploitability
Exploitation requires an attacker to know a user's password and observe a valid TOTP code within its validity window, making it moderately difficult but possible with a bit of reconnaissance and observation.
Blast radius
The vulnerability could allow attackers to compromise administrator accounts across multiple sites using the vulnerable plugin, potentially leading to full system takeover and persistent access.
Detection
No reliable host or network indicator is derivable from the published description.
Prioritized remediation
Upgrade to WP 2FA plugin version 4.1.0 or later to receive the fix for time-based passcode replay vulnerability.
auth-bypasswp-plugin2faauthentication

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

The WP 2FA WordPress plugin before 4.1.0 does not invalidate a time-based one-time passcode once it has been used, allowing an attacker who knows an account's password and has observed a valid code within its validity window to replay it and bypass two-factor authentication, including on administrator accounts.

CVSS vector

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

Weaknesses

CWE-287

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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