CVE-2023-6266

Backup Migration <= 1.3.6 - Unauthenticated Arbitrary Backup Download to Sensitive Information Exposure

The Backup Migration plugin for WordPress is vulnerable to unauthorized access of data due to insufficient path and file validation on the BMI_BACKUP case of the handle_downloading function in all versions up to, and including, 1.3.6. This makes it possible for unauthenticated attackers to download back-up files which can contain sensitive information such as user passwords, PII, database credentials, and much more.

Affected

inisev · BackupBliss – Backup & Migration with Free Cloud Storage

CVSS v3.1 NVD

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

EPSS

2.05% chance of exploitation in the next 30 days, 81st percentile

Nuclei

high · CWE-552

Published

2024-01-11

Updated

2026-04-08

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-6266.yaml

Security advisories

• https://www.wordfence.com/threat-intel/vulnerabilities/id/08801f53-3c57-41a3-a637-4b52637…
• https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.5/includes/initializer…
• https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.5/includes/initializer…
• https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/initializer…

References

• CVE Record
• NVD entry