CVE-2021-43408

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.

• CWE-89
• CWE-89

• https://appcheck-ng.com/security-advisory-duplicate-post-wordpress-plugin-sql-injection-vulnerability/Exploit, Third Party Advisory
• https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.2.0/post/handler.php#L510Third Party Advisory
• https://appcheck-ng.com/security-advisory-duplicate-post-wordpress-plugin-sql-injection-vulnerability/Exploit, Third Party Advisory
• https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.2.0/post/handler.php#L510Third Party Advisory

Published

Nov 19, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-4340The uListing plugin for WordPress is vulnerable to generic S…7.5
• CVE-2021-43400An issue was discovered in gatt-database.c in BlueZ 5.61. A …9.1
• CVE-2021-43403An issue was discovered in FusionPBX before 4.5.30. The log_…6.5
• CVE-2021-43404An issue was discovered in FusionPBX before 4.5.30. The FAX …8.8
• CVE-2021-43405An issue was discovered in FusionPBX before 4.5.30. The fax_…8.8
• CVE-2021-43406An issue was discovered in FusionPBX before 4.5.30. The fax_…8.8
• CVE-2021-43409The “WPO365 | LOGIN” WordPress plugin (up to and including v…6.1
• CVE-2021-4341The uListing plugin for WordPress is vulnerable to authoriza…9.8
• CVE-2021-43410Apache Airavata Django Portal allows CRLF log injection beca…5.3
• CVE-2021-43411An issue was discovered in GNU Hurd before 0.9 20210404-9. W…7.5
• CVE-2021-43412An issue was discovered in GNU Hurd before 0.9 20210404-9. l…7.8
• CVE-2021-43413An issue was discovered in GNU Hurd before 0.9 20210404-9. A…8.8