Backup Migration <= 1.3.7 - Unauthenticated Remote Code Execution

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Summary

CVECVE-2023-6553
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-12-15 11:15:47 UTC
Updated2026-04-08 18:18:37 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

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

Problem Types: CWE-94 | NVD-CWE-noinfo | CWE-94 CWE-94 Improper Control of Generation of Code ('Code Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1[email protected]Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Backupbliss Backup Migration All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Inisev BackupBliss Backup Migration With Free Cloud Storage affected 1.3.7 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php af854a3a-2127-422b-91ae-364da2661108 plugins.trac.wordpress.org Patch
www.synacktiv.com/en/publications/php-filters-chain-what-is-it-and-how-to-use-it af854a3a-2127-422b-91ae-364da2661108 www.synacktiv.com Not Applicable
plugins.trac.wordpress.org/changeset af854a3a-2127-422b-91ae-364da2661108 plugins.trac.wordpress.org Patch
www.wordfence.com/threat-intel/vulnerabilities/id/3511ba64-56a3-43d7-8ab8-c6e40... af854a3a-2127-422b-91ae-364da2661108 www.wordfence.com Third Party Advisory
plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php af854a3a-2127-422b-91ae-364da2661108 plugins.trac.wordpress.org Patch
plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php af854a3a-2127-422b-91ae-364da2661108 plugins.trac.wordpress.org Patch
plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php af854a3a-2127-422b-91ae-364da2661108 plugins.trac.wordpress.org Patch
packetstormsecurity.com/files/176638/WordPress-Backup-Migration-1.3.7-Remote-Command-... af854a3a-2127-422b-91ae-364da2661108 packetstormsecurity.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Nex Team (en)

Additional Advisory Data

SourceTimeEvent
CNA2023-12-11T00:00:00.000ZDisclosed

Legacy QID Mappings

  • 150763 WordPress Backup Migration Plugin: Unauthenticated Remote Code Execution Vulnerability (CVE-2023-6553)
  • 731013 WordPress Plugin Backup Migration Remote Code Execution (RCE) Vulnerability
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