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CVE Record

CVE-2022-0993: SiteGround Security <= 1.2.5 - Authorization Weakness to Authentication Bypass

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.

HighCVSS 8.1Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2022-0993 is an authentication bypass in the SiteGround Security WordPress plugin. In affected versions up to and including 1.2.5, a flaw in the 2FA backup-code login flow could let an unauthenticated attacker log in as an administrator, creating a credible risk of full WordPress site compromise.

Executive priority

Treat this as high priority for any public WordPress property using the affected plugin. The business risk is site takeover, not just information disclosure, but the provided evidence does not show confirmed active exploitation.

Technical view

The vulnerability is an authorization weakness, mapped to CWE-285, in the plugin’s 2FA backup-code implementation. The CVE states that missing identity verification during successful backup-code handling allowed administrative login without prior authentication. The CVSS v3.1 score is 8.1, with network access, no privileges, no user interaction, and high confidentiality, integrity, and availability impact.

Likely exposure

Exposure is likely limited to WordPress sites with the SiteGround Security or Security Optimizer plugin installed at version 1.2.5 or earlier. Sites without the plugin, or running a patched later version, are not shown as affected by the provided sources.

Exploitation context

The source bundle does not establish known active exploitation, and the CVE is not marked as CISA KEV. However, the impact is serious because administrative authentication bypass on WordPress can enable content changes, credential exposure, malware placement, or broader site takeover.

Researcher notes

The key issue is missing identity binding in the 2FA backup-code success path. The provided affected metadata is sparse and partly inconsistent, so version validation should rely on installed plugin version and vendor or WordPress repository records. Avoid assuming exploit activity without additional telemetry.

Mitigation direction

  • Update the SiteGround Security plugin to a patched version newer than 1.2.5.
  • If immediate update is not possible, disable or remove the vulnerable plugin.
  • Review vendor and WordPress plugin guidance for current fixed versions.
  • Audit WordPress administrator accounts and recent login activity.
  • Check for unexpected plugin, theme, user, or file changes.

Validation and detection

  • Inventory WordPress sites using the SiteGround Security or Security Optimizer plugin.
  • Confirm installed plugin versions are later than 1.2.5.
  • Review authentication logs for unexpected administrator sessions around April 2022 onward.
  • Verify no unknown administrator accounts exist.
  • Check WordPress file integrity and plugin/theme changes after remediation.
Prepared
Confidence
high
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-285: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2022-0993 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.1 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.1CVSS 3.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.1High
CVSS 3.1 vector shape for CVE-2022-0993Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
sitegroundSecurity Optimizer – The All-In-One Protection Plugin0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-285 · source CWE mapping

Improper Authorization

Improper Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.