WordPress plugin
Duplicate Page and Post <= 2.1.1 — Malicious Backdoor
113554f9-b8f0-4bdd-be90-0093fb520022Published · Updated Action summary
Affected: ≤2.1.1No patch available
What to do until a fix ships- Severity
- Critical9.8
- CVSS
- 9.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-506 Embedded Malicious Code
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page7
Am I affected?
Duplicate Page and Post duplicate-page-and-post
- Affected≤ 2.1.1
- PatchedNo fix yet
No patched version available.
You are affected if you run ≤ 2.1.1. No fixed version has been released.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Duplicate Page and Post.
- 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
- No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Duplicate Page and Post to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Wordfence.
The Duplicate Page and Post plugin for WordPress is vulnerable to a developer-created backdoor in versions up to, and including, 2.1.1. This makes it possible for the developer to inject content to normal site visitors, web crawlers, or the site administrators.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Timeline
CVE published
Severity critical, CVSS 9.8
Record last updated
Sources & licenses
- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- 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.