CVE•Published 2023-12-15•Modified 2026-04-08•1 article on news•6 live references•NVD data

CVE-2023-6553Backupbliss · Backup_migration

Vulnerability data via NVD (ingested)

CVSS v3.1

9.8

CRITICAL

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

EPSS percentile

100

Exploit Prediction Scoring System · top 0% of all CVEs

Weaknesses (CWE)

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

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.

Timeline

Published 2023-12-15

Modified 2026-04-08

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2023-6553

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · WP plugin path

http.html:"/wp-content/plugins/backup-migration/"

Matches any site loading the "backup-migration" plugin — doesn't rely on Shodan's vuln tag.

Shodan · product

product:"Backupbliss Backup Migration"

All exposed Backupbliss Backup Migration instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Backup Migration"

HTTP body or banner mentions "Backup Migration" — catches deploys Shodan didn't identify as a product.