Critical severity · published Dec 15, 2023
CVE-2023-6553
Backup Migration <= 1.3.7 - Unauthenticated Remote Code Execution
9.8
CVSS
97.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)97.8% · higher than 100% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BB
BackupBliss – Backup & Migration with Free Cloud Storage · inisev
through 1.3.7 · source: vendor
BM
Backup Migration · Backupbliss
through 1.3.7 · source: NVD
Affected product
BB
BackupBliss – Backup & Migration with Free Cloud Storage
inisev
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-6553
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-6553
Patch
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php#L118
Patch
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php#L38
Patch
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php#L62
Patch
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/backup-heart.php#L64
Patch
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3006541%40backup-backup&new=3006541%40backup-backup&sfp_email=&sfph_mail=
Not Applicable
https://www.synacktiv.com/en/publications/php-filters-chain-what-is-it-and-how-to-use-it
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