TI-2023-06004 Aliases CVE-2023-6553 GHSA-2rcj-3wpj-27f2

Backup Migration <= 1.3.7 - Unauthenticated Remote Code Execution

CRITICAL 93CWE-94Published 2023-12-15 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-94.

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.97846 99th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
inisev	BackupBliss – Backup & Migration with Free Cloud Storage	up to 1.3.7	—	No fix listed	CNA

BackupBliss – Backup & Migration with Free Cloud Storage Vendorinisev Affected up to 1.3.7 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:backupbliss:backup_migration::::::wordpress::*	up to 1.3.7	Vulnerable	migrate

cpe:2.3:a:backupbliss:backup_migration:*:*:*:*:*:wordpress:*:* Versions up to 1.3.7 Vulnerable ·migrate

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-6553
2026-10-03 Alias added: GHSA-2rcj-3wpj-27f2

References

Patch 5

Advisory 1

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

Other 1

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

TI-2024-00517 Enhanced Text Widget < 1.6.6 - Admin+ Stored XSS CVSS 3.1MEDIUM 6.5
TI-2023-01258 Redirection < 1.1.5 - Plugin Reset via CSRF CVSS 3.1MEDIUM 6.5
TI-2023-01257 Redirection < 1.1.4 - Redirect Creation via CSRF CVSS 3.1MEDIUM 6.5
TI-2024-00519 Ultimate Posts Widget < 2.3.1 - Admin+ Stored XSS CVSS 3.1MEDIUM 5.4
TI-2023-06399 Backup Migration <= 1.3.9 - Authenticated (Admin+) OS Command Injection via url CVSS 3.1HIGH 7.2
TI-2024-09597 Social Media Share Buttons < 2.9.0 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8

See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences