CVE-2023-6553

critical

Description

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.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/3511ba64-56a3-43d7-8ab8-c6e40e3b686e?source=cve

https://www.bleepingcomputer.com/news/security/50k-wordpress-sites-exposed-to-rce-attacks-by-critical-bug-in-backup-plugin/?&web_view=true

https://github.com/Dungsocool/CVE-2026-60137-CVE-2026-63030

https://github.com/joaoaugustom/WordPress_Backup_Migration-RCE_Unauthenticated

https://github.com/spabam/exploits

https://github.com/Aliyankhan-source/CVE-2023-6553-RCE-Fancy-Exploit

https://github.com/elqahtani/wphunter

https://github.com/Harshit-Mashru/CVE-2023-6553

https://www.synacktiv.com/en/publications/php-filters-chain-what-is-it-and-how-to-use-it

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3006541%40backup-backup&new=3006541%40backup-backup&sfp_email=&sfph_mail=

https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php#L64

https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php#L62

https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php#L38

https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php#L118

http://packetstormsecurity.com/files/176638/WordPress-Backup-Migration-1.3.7-Remote-Command-Execution.html

Details

Source: Mitre, NVD

Published: 2023-12-15

Updated: 2026-04-08

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.97846

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability Being Monitored

Detections

Analytics