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Vulnerabilities

Vulnerability · CVE-2023-6553

Backup Migration plugin for WordPress Remote Code Execution

Published Dec 16, 2023 · catalog updated Dec 16, 2023 · Backup Migration plugin for

Patch now

CVE-2023-6553 is in the CISA known-exploited catalog. Confirm Backup Migration plugin for against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Backup Migration plugin for).
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
97.85%
Remediation
Remediation guidance
Affected products
stated backup_migration · vendor backupbliss backup_migration

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. VulnCheck canary evidence. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated backup_migration<= 1.3.7
  • vendor backupbliss backup_migrationversion unspecified

How to fix CVE-2023-6553

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-6553 is in the CISA known-exploited catalog. Confirm Backup Migration plugin for against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with <= 1.3.7. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 97.85%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 16, 2023 · VulnCheck KEV

    Detected

    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 serv

  2. Dec 16, 2023 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2023-6553

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-6553

    30-day exploitation probability 97.8%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2023-6553

    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 t

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.