CVE-2023-6553
Published: 15 December 2023
Summary
CVE-2023-6553 is a critical-severity Code Injection (CWE-94) vulnerability in Backupbliss Backup Migration. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 0.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
The Backup Migration plugin for WordPress is vulnerable to remote code execution in all versions through 1.3.7. The flaw exists in the /includes/backup-heart.php file, where an attacker can supply values to an include statement and thereby execute arbitrary code on the server. It is tracked as CVE-2023-6553 and carries a CVSS 3.1 base score of 9.8.
Unauthenticated attackers can exploit the issue over the network with no credentials or user interaction required, resulting in full compromise of the confidentiality, integrity, and availability of the affected WordPress installation.
The supplied references include the vulnerable code paths in the plugin repository together with a changeset that records the update from the affected revision, indicating that mitigation consists of upgrading to a patched release of the Backup Migration plugin. The associated EPSS score has reached a peak of 0.9596 with a current value of 0.9353.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-58782
Vulnerability details
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,…
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and subsequently leverage that to achieve remote code execution. This makes it possible for unauthenticated attackers to easily execute code on the server.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.
Dynamically generated code can be produced and executed inside the isolated chamber, preventing host compromise from code-injection payloads.
Validates inputs used in dynamic code generation to block injected directives.
Directly prevents execution of attacker-supplied code written into data memory regions.