CVE-2023-6553
Backup Migration <= 1.3.7 - Unauthenticated Remote Code Execution
- Published
- Dec 15, 2023
- Updated
- Apr 8, 2026
- Assigning CNA
- Wordfence
- Evidence observed
- Mar 3, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.9%
- 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 Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.3.7 via the /includes/backup-heart.php file. This is due to an attacker being able to control the values passed to an include, and subsequently leverage that to achieve remote code execution. This makes it possible for unauthenticated attackers to easily execute code on the server.
Sources
7- CVE-2023-6553-RCE-ExploitExploit
The Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.3.7 via the /includes/backup-heart.php file.
- CVE-2023-6553Exploit
CVE-2023-6553 exploit script
Proof-of-concept exploit and technical write-up for CVE-2023-6553, an unauthenticated PHP file inclusion vulnerability enabling remote code execution in WordPress Backup Migration plugin <=1.3.7.
- CVE-2023-6553Exploit
Exploit Development for CVE-2023-6553 on Backup Plugin in Wordpress
This exploit is based on CVE-2023-6553 and was built upon the original exploit by Chocapik, it was added that a direct reverse shell can be obtained.
Python proof-of-concept exploit for CVE-2023-6553, demonstrating unauthenticated remote code execution via PHP filter chain in the Backup Migration WordPress plugin.
dangwenjing · multiple · Mar 3, 2026
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