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
- Oct 17, 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
modules/exploits/multi/http/wp_backup_migration_php_filter.rb
Metasploit Framework modulesDeclared conditions
- platform: Linux,PHP,Unix,Windows($.exploit_multi/http/wp_backup_migration_php_filter.platform)
- verification: check_declared($.exploit_multi/http/wp_backup_migration_php_filter.check)
http/cves/2023/CVE-2023-6553.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: dsl($.matchers[*].type)
Responsible use
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