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SiteGround Security <= 1.2.5 — Authorization Weakness to Authentication Bypass

CVE-2022-0993Published · Updated

Action summary

Affected: ≤1.2.5Update to 1.2.6 or newer

All remediation steps
Severity
High8.1
CVSS
8.1
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:H Attack complexity
High
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-285 Improper Authorization
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed

Am I affected?

Security Optimizer – The All-In-One Protection Plugin sg-security

  1. Affected≤ 1.2.5
  2. Patched in1.2.6

Update to 1.2.6 or newer.

You are affected if you run ≤ 1.2.5. Version 1.2.6 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Security Optimizer – The All-In-One Protection Plugin.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 1.2.6, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Security Optimizer – The All-In-One Protection Plugin to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Chloe Chamberland.

The SiteGround Security plugin for WordPress is vulnerable to authentication bypass that allows unauthenticated users to log in as administrative users due to missing identity verification on the 2FA back-up code implementation that logs users in upon success. This affects versions up to, and including, 1.2.5.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Security Optimizer – The All-In-One Protection Plugin

All 8
More vulnerabilities in Security Optimizer – The All-In-One Protection Plugin
SeverityVulnerabilityCVEPublished
Medium4.3 Two-Factor Authentication via Brute Force
≤1.6.8Update to 1.6.9
CVE-2026-118185
Medium5.32-Factor Authentication Bypass
≤1.6.6Update to 1.6.7
CVE-2026-82228
Medium5.3IP Allowlist Bypass
≤1.6.4Update to 1.6.5
CVE-2026-13342
Medium5.3Missing Authorization
≤1.5.8Update to 1.5.9
CVE-2025-66121
Medium4.3Missing Authorization via hide_notice()
≤1.5.0Update to 1.5.1
CVE-2024-38774

Timeline

  1. CVE published

    Severity high, CVSS 8.1

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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