CVE-2021-43408
Duplicate Post WordPress Plugin SQL Injection Vulnerability
- Published
- Nov 19, 2021
- Updated
- Sep 17, 2024
- Assigning CNA
- AppCheck
- Evidence observed
- Aug 5, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 95.3%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
2Technical analysis and proof-of-concept exploit for CVE-2021-43408, a SQL injection vulnerability in the WordPress Duplicate Post plugin version 1.1.9, with step-by-step exploitation guide and remediation advice.
- ExploitsExploit
The whole collection of Exploits developed by me (Hacker5preme)
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