CVE-2023-6972
Backup Migration <= 1.3.9 - Unauthenticated Path Traversal to Arbitrary File Deletion
No known exploitation. EPSS puts it in the 72nd percentile. Fixed in 1.4.0.
What to do
Find your product and version, then upgrade to the build on the right.
- inisev BackupBliss – Backup & Migration with Free Cloud StorageAffected: ≤ 1.3.9Upgrade to: after 1.3.9Stated by: CVE record
- Backupbliss Backup MigrationAffected: < 1.4.0Upgrade to: 1.4.0Stated by: NVD
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
The Backup Migration plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.3.9 via the 'content-backups' and 'content-name', 'content-manifest', or 'content-bmitmp' and 'content-identy' HTTP headers. This makes it possible for unauthenticated attackers to delete arbitrary files, including the wp-config.php file, which can make site takeover and remote code execution possible.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
1.4% chance of exploitation activity in the next 30 days, which ranks it in the 72nd percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
9 events over 915 days, from the signal feeds we watch.
- OpenVAS check added
- EPSS band changemoderate → low
- EPSS band changelow → moderate
- Nuclei check added
- Patch availablerecord updated
- Publishedweakness classified, att&ck mapped
Affected products
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Scored 7.5 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality NoneNo confidentiality impact
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability NoneNo availability impact
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
References in the record
- wordfence.com/threat-intel/vulnerabilities/id/0a3ae696-f67d-4ed2-b307-d2f36b6f188c?source=cve
- plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.9/includes/backup-heart.php
- plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.9/includes/bypasser.php
And 1 more reference. See all after sign-in
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