Backup Migration <= 1.3.9 - Unauthenticated Path Traversal to Arbitrary File Deletion
Published Dec 23, 2023
9.8
CRITICALCVSS 3.1
EPSS 1.38%
Description
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.
Affected products
-
- Version 0StatusaffectedConstraints<=1.3.9
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Inisev | BackupBliss – Backup & Migration with Free Cloud Storage | unaffected |
|
- < 1.4.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2023–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.38% (0.01379) | 71.09th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.39% (0.01390) | 68.66th | v5 (v2026.06.15) |
| Apr 9, 2026 | 19.03% (0.19032) | 95.32th | v4 (v2025.03.14) |
| Nov 21, 2025 | 3.77% (0.03774) | 87.58th | v4 (v2025.03.14) |
| Nov 18, 2025 | 5.12% (0.05123) | 88.82th | v4 (v2025.03.14) |
| Apr 15, 2025 | 3.77% (0.03774) | 87.38th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.12% (0.05123) | 88.86th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.75% (0.01749) | 71.23th | v4 (v2025.03.14) |
| Mar 24, 2025 | 5.12% (0.05123) | 88.85th | v4 (v2025.03.14) |
| Mar 23, 2025 | 1.75% (0.01749) | 78.94th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.12% (0.05123) | 89.10th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.44% (0.00443) | 75.71th | v3 (v2023.03.01) |
| Mar 13, 2024 | 0.53% (0.00528) | 76.49th | v3 (v2023.03.01) |
| Dec 29, 2023 | 0.53% (0.00528) | 74.48th | v3 (v2023.03.01) |
| Dec 23, 2023 | 0.06% (0.00064) | 26.47th | v3 (v2023.03.01) |
References (4)
- https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.9/includes/backup-heart.php Patch
- https://plugins.trac.wordpress.org/browser/backup-backup/tags/1.3.9/includes/bypasser.php Patch
- https://plugins.trac.wordpress.org/changeset/3012745/backup-backup Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0a3ae696-f67d-4ed2-b307-d2f36b6f188c?source=cve PatchThird Party Advisory
Change history (0)
No recorded changes yet.