CVE-2025-13698CWE-22path-traversal

CVE-2025-13698

Medium · published December 24, 2025

CVSS v3.0
4.5
EPSS
1%
Percentile
48.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.0
4.5 · MEDIUM
Vector
CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00611 · 48.6th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2025-12-24T03:15Z
References (2)
https://github.com/opnsense/core/commit/cb15c935137d05c86a1e6cf12af877e9c32a23af · [email protected]https://www.zerodayinitiative.com/advisories/ZDI-25-1022/ · [email protected]
EPSS history
Timeline
  • 23 DEC 21:40Z
    Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability
    cvelistv5