What’s Vulnerable › Vulnerabilities

CVE-2025-14944: Backup Migration <= 2.0.0 - Missing Authorization to Unauthenticated Backup Upload to Offline Storage

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-07 · updated 2026-10-07
• Weakness: CWE-862

Description

The Backup Migration plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 2.0.0. This is due to a missing capability check on the 'initializeOfflineAjax' function and lack of proper nonce verification. The endpoint only validates against hardcoded tokens which are publicly exposed in the plugin's JavaScript. This makes it possible for unauthenticated attackers to trigger the backup upload queue processing, potentially causing unexpected backup transfers to configured cloud storage targets and resource exhaustion.

Affected products

• inisev BackupBliss – Backup & Migration with Free Cloud Storage: through 2.0.0

References

• https://plugins.trac.wordpress.org/browser/backup-backup/trunk/includes/ajax_offline.php#L112
• https://plugins.trac.wordpress.org/browser/backup-backup/trunk/includes/offline.php#L29
• https://plugins.trac.wordpress.org/changeset?old=3386897&old_path=backup-backup%2Ftags%2F2.0.0%2Fincludes%2Foffline.php&new=3449635&new_path=backup-backup%2Ftags%2F2.1.0%2Fincludes%2Foffline.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/a2a41a15-0743-48cc-8c92-7cb839fa5847?source=cve

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