WP 2FA <= 2.5.0 - Insecure Direct Object Reference to Arbitrary Email Sending

4.3
Authorization Bypass Through User-Controlled Key
CVE CVE-2023-6506
CVSS 4.3 (Medium)
Publicly Published January 2, 2024
Last Updated January 22, 2024
Researcher Ulyses Saicha

Description

The WP 2FA – Two-factor authentication for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.5.0 via the send_backup_codes_email due to missing validation on a user controlled key. This makes it possible for subscriber-level attackers to email arbitrary users on the site.

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Vulnerability Details for WP 2FA – Two-factor authentication for WordPress

Software Type Plugin
Software Slug wp-2fa (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.6.0, or a newer patched version
Affected Version
  • <= 2.5.0
Patched Version
  • 2.6.0

Recent vulnerabilities in WP 2FA – Two-factor authentication for WordPress

# Title CVE ID CVSS Researchers Date
1 WP 2FA – Two-factor authentication for WordPress < 4.2.0 - Authenticated (Administrator+) Insecure Direct Object Reference CVE-2026-108066 2.7 Muni Nitish Kumar Yaddala October 14, 2026
2 WP 2FA – Two-factor authentication for WordPress <= 4.1.0 - Cross-Site Request Forgery CVE-2026-62142 4.3 Filip Kowalski October 8, 2026
3 2FA <= 4.0.0 - Unauthenticated Two-Factor Authentication Bypass CVE-2026-103514 4.3 Suhayb Ahmed October 1, 2026
4 2FA <= 4.0.0 - Two-Factor Authentication Bypass CVE-2026-15372 4.3 Jakub Herman July 29, 2026
5 WP 2FA <= 3.1.1.1 - Authenticated (Subscriber+) Account Takeover CVE-2026-12988 4.3 Janger June 23, 2026
6 WP 2FA – Two-factor authentication for WordPress <= 2.9.3 - 2-Factor Authentication Bypass CVE-2025-12628 5.3 Benjamin Nadarević November 3, 2025
7 WP 2FA <= 2.6.3 - Unauthenticated Information Exposure via Log File CVE-2022-44587 5.3 Snicco June 20, 2024
8 WP 2FA – Two-factor authentication for WordPress <= 2.6.2 - Reflected Cross-Site Scripting CVE-2024-32568 6.1 Rafie Muhammad April 16, 2024
9 WP 2FA – Two-factor authentication for WordPress <= 2.5.0 - Cross-Site Request Forgery CVE-2023-6520 4.3 Ulyses Saicha January 2, 2024
10 WP 2FA – Two-factor authentication for WordPress <= 2.2.0 - Missing Authorization CVE-2022-44595 4.3 Calvin Alkan December 7, 2022

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