LiveActive security incident?Get immediate response
CVE Record

CVE-2023-51406: WordPress FastDup Plugin <= 2.1.7 is vulnerable to Sensitive Data Exposure

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Ninja Team FastDup – Fastest WordPress Migration & Duplicator.This issue affects FastDup – Fastest WordPress Migration & Duplicator: from n/a through 2.1.7.

MediumCVSS 5.3Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

A WordPress migration/duplicator plugin may expose sensitive information to people who are not logged in. The available sources describe confidentiality impact only, with no indicated data modification or outage risk.

Executive priority

Treat this as a moderate, exposure-reduction issue. Prioritize internet-facing WordPress sites and sites used for migration or backup workflows, because exposed logs may reveal operational details or secrets even without direct system compromise.

Technical view

CVE-2023-51406 is a CWE-200 sensitive information exposure issue in Ninja Team FastDup through version 2.1.7. Patchstack identifies the exposure as via a log file. CVSS 3.1 is 5.3: network reachable, low complexity, unauthenticated, no user interaction, confidentiality low.

Likely exposure

Exposure is limited to WordPress sites running FastDup - Fastest WordPress Migration & Duplicator through 2.1.7. Publicly reachable WordPress sites have higher practical exposure because the CVSS vector is network-accessible and unauthenticated.

Exploitation context

The source bundle does not show CISA KEV listing or any cited evidence of active exploitation. The CVSS vector indicates exploitation does not require authentication or user interaction, but the documented impact is limited to low confidentiality exposure.

Researcher notes

Evidence is limited to the CVE record and Patchstack entry metadata. The bundle names log-file exposure but does not provide exploit details, observed exploitation, or a specific fixed version. Validate exposure safely without publishing paths or payloads.

Mitigation direction

  • Inventory WordPress sites for FastDup versions through 2.1.7.
  • Check Ninja Team or Patchstack guidance for a fixed version or official remediation.
  • Disable or remove FastDup where it is not operationally required.
  • Restrict access to plugin-generated logs where platform controls allow it.
  • Review exposed logs for sensitive data and rotate affected secrets if found.

Validation and detection

  • Confirm the installed FastDup version on each WordPress site.
  • Verify whether plugin log files are publicly reachable.
  • Review web server logs for suspicious access to FastDup log paths.
  • Check whether sensitive credentials or backup metadata appeared in logs.
  • Document remediation status for every affected WordPress instance.
Prepared
Confidence
medium
Sources
3

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 · medium confidence lookup

CWE-200: Information exposure and cloud metadata lookup

Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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
cve · low confidence lookup

CVE-2023-51406 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
Medium
CVSS
5.3 (3.1)
Known Exploited
No
Published

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

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
2Source 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
5.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.3Medium
CVSS 3.1 vector shape for CVE-2023-51406Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
Ninja TeamFastDup – Fastest WordPress Migration & Duplicatorfastdup, n/aunaffected
Weakness

CWE details

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

CWE-200 · source CWE mapping

Exposure of Sensitive Information to an Unauthorized Actor

Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.