FastDup <= 2.1.7 — Sensitive Information Exposure via Log File
CVE-2023-51406Published · Updated Action summary
Affected: ≤2.1.7Update to 2.1.8 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:LConfidentiality- Low
I:NIntegrity- None
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
FastDup – Fastest WordPress Migration & Duplicator fastdup
- Affected≤ 2.1.7
- Patched in2.1.8
Update to 2.1.8 or newer.
You are affected if you run ≤ 2.1.7. Version 2.1.8 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under FastDup – Fastest WordPress Migration & Duplicator.
- 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
- Update to version 2.1.8, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch FastDup – Fastest WordPress Migration & Duplicator to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Joshua Chan.
The FastDup – Fastest WordPress Migration & Duplicator plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.1.7 via the plugin's log file. This makes it possible for unauthenticated attackers to extract sensitive data including system and plugin configurartion
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in FastDup – Fastest WordPress Migration & Duplicator
All 5| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium5.3 | Unauthenticated Path Traversal ≤2.7.2Update to 2.7.3 | CVE-2026-52703 | |
| High8.8 | Missing Authorization to Authenticated (Contributor+) Backup Creation and Download ≤2.7.1Update to 2.7.2 | CVE-2026-1104 | |
| Medium6.5 | Authenticated (Contributor+) Path Traversal via 'dir_path' REST Parameter ≤2.7Update to 2.7.1 | CVE-2026-0604 | |
| Critical9.8 | Sensitive Information Exposure via Directory Listing ≤2.1.9Update to 2.2.0 | CVE-2023-6592 |
- Medium5.3Unauthenticated Path Traversal
≤2.7.2Update to 2.7.3
- High8.8Missing Authorization to Authenticated (Contributor+) Backup Creation and Download
≤2.7.1Update to 2.7.2
- Medium6.5Authenticated (Contributor+) Path Traversal via 'dir_path' REST Parameter
≤2.7Update to 2.7.1
- Critical9.8Sensitive Information Exposure via Directory Listing
≤2.1.9Update to 2.2.0
Timeline
CVE published
Severity medium, CVSS 5.3
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.