Reported vulnerability

Duplicate Post WordPress Plugin <= 1.1.9 - SQL Injection

Published 19 Oct 2021

Updated 22 Jan 2024

CVE-2021-43408

Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.

Does this affect my version?

Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.

Duplicate Post

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Wordfence advisory

medium · CVSS 6.5

The "Duplicate Post" WordPress plugin up to and including version 1.1.9 is vulnerable to SQL Injection. SQL injection vulnerabilities occur when client supplied data is included within an SQL Query insecurely. SQL Injection can typically be exploited to read, modify and delete SQL table data. In many cases it also possible to exploit features of SQL server to execute system commands and/or access the local file system. This particular vulnerability can be exploited by any authenticated user who has been granted access to use the Duplicate Post plugin. By default, this is limited to Administrators, however the plugin presents the option to permit access to the Editor, Author, Contributor and Subscriber roles.

Severity vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Duplicate Post

Software
plugin · copy-delete-posts
Affected versions
Start version unspecified, before 1.2.0
Fix availability
Fix available
Fixed versions
1.2.0

Recommended action

Update to version 1.2.0, or a newer patched version

Further references (1)
Data sources and licences

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Copyright 1999-2026 The MITRE Corporation

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Read licence terms

Source: Wordfence

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Questions about this vulnerability

Which versions of Duplicate Post are affected?

Wordfence lists these affected versions: Start version unspecified, before 1.2.0. Use the version checker above to compare your installed release with this report.

Is a fix available for Duplicate Post?

Wordfence reports a fix for this issue in Duplicate Post. It lists these fixed versions: 1.2.0. Back up your website and test the recommended update before applying it to your live site.

Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

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