CVE-2025-13698Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability
Updated under an hour ago ()
Does this affect you?
It affects Deciso OPNsense. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Deciso OPNsense. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of backup configuration files. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of root. Was ZDI-CAN-28133.
- CVSS
- 4.5 MEDIUM (v3.0, CNA)CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- zdi
- NVD analysis
- Deferred
- Record last updated
- Dec 24, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Deciso OPNsense deciso:opnsense (from the name) | 25.7 | CNA record |
References
- https://www.zerodayinitiative.com/advisories/ZDI-25-1022/x-research-advisory
- https://github.com/opnsense/core/commit/cb15c935137d05c86a1e6cf12af877e9c32a23afvendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.