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CVE-2023-6266

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

HIGH
7.5
CVSS Score
Published: January 11, 2024 at 08:32 AM UTC
Updated: June 17, 2026 at 06:50 AM UTC
2 products affected across 2 vendorsBackup MigrationBackup Migration

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Severity
HIGH7.5
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Backup Migration· Backupblisswordpress-plugin
95%
v ≤ 1.3.6
Backup Migration· Inisevwordpress-plugin
60%
v ≤ 1.3.6

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

Issue Tracking
Source: [email protected]
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.5/includes/initializer.php#L1048
Issue Tracking
Source: [email protected]
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.5/includes/initializer.php#L972
Issue Tracking
Source: [email protected]
https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.7/includes/initializer.php#L1065
Third Party Advisory
Source: [email protected]
https://www.wordfence.com/threat-intel/vulnerabilities/id/08801f53-3c57-41a3-a637-4b52637cc612?source=cve

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHWordfence
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-552CWE-200

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