Home/CVE/The Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1
CVE

CVE-2023-6553

The Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1

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.

CRITICAL · CVSS 9.8 EPSS 0.93531
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 0% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-94Improper Control of Generation of Code ('Code Injection')
▤

Affected Products & Versions

1
backupbliss backup migration<= 1.3.7
⚠

Public Exploits & PoCs

3
webappsWordPress Backup Migration 1.3.7 - Remote Command Execution2026-03-03
nucleiWorpress Backup Migration <= 1.3.7 - Unauthenticated Remote Code Executioncritical
pocpacketstormsecurity.com · WordPress-Backup-Migration-1.3.7-Remote-Command-Execution...packetstormsecurity.com
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · security@wordfence.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 Dec 2023 · 11:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php#L118Patch
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php#L38Patch
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php#L62Patch
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php#L64Patch
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3006541%40backup-backup&new=3006541%40backup-backup&sfp_email=&sfph_mail=Patch
https://www.synacktiv.com/en/publications/php-filters-chain-what-is-it-and-how-to-use-itNot Applicable
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