Security Optimizer – The All-In-One Protection Plugin <= 1.6.6 - 2-Factor Authentication Bypass
| CVE | CVE-2026-82228 |
|---|---|
| CVSS | 5.3 (Medium) |
| Publicly Published | August 28, 2026 |
| Last Updated | September 2, 2026 |
| Researcher |
Ananda Dhakal
|
Description
The Security Optimizer – The All-In-One Protection Plugin plugin for WordPress is vulnerable to 2FA Bypass in all versions up to, and including, 1.6.6. This makes it possible for unauthenticated attackers to bypass a second factor of authentication when the first is known.
Learn more about Authentication Bypass vulnerabilities and how to prevent them.
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Vulnerability Details for Security Optimizer – The All-In-One Protection Plugin
| Software Type | Plugin |
|---|---|
| Software Slug | sg-security (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 1.6.7, or a newer patched version |
| Affected Version |
|
| Patched Version |
|
Recent vulnerabilities in Security Optimizer – The All-In-One Protection Plugin
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | Security Optimizer – The All-In-One Protection <= 1.6.4 - IP Allowlist Bypass | CVE-2026-13342 | Shivamani Vastrala | July 23, 2026 | |
| 2 | SiteGround Security <= 1.5.8 - Missing Authorization | CVE-2025-66121 | Legion Hunter | November 30, 2025 | |
| 3 | Security Optimizer – The All-In-One Protection Plugin <= 1.5.0 - Missing Authorization via hide_notice() | CVE-2024-38774 | Rafie Muhammad | July 19, 2024 | |
| 4 | SiteGround Security <= 1.3.0 - Authenticated (Administrator+) SQL Injection | CVE-2023-0234 | So Sakaguchi | January 13, 2023 | |
| 5 | SiteGround Security <= 1.2.5 - Authorization Weakness to Authentication Bypass | CVE-2022-0993 | Chloe Chamberland | April 7, 2022 | |
| 6 | SiteGround Security <= 1.2.5 - Authentication Bypass via 2FA Setup | CVE-2022-0992 | Chloe Chamberland | April 6, 2022 |
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