vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2025-13698

Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability

MEDIUM
4.5
CVSS Score
Published: December 23, 2025 at 09:40 PM UTC
Updated: October 19, 2026 at 10:10 PM UTC
1 product affected across 1 vendorOPNsense

Using OPNsense by Deciso?

Get instant alerts when new vulnerabilities affect OPNsense - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM4.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_research-advisory
Source: cverecord
https://www.zerodayinitiative.com/advisories/ZDI-25-1022/
Vendor Advisory
Source: cverecord
https://github.com/opnsense/core/commit/cb15c935137d05c86a1e6cf12af877e9c32a23af

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.5MEDIUMzdi
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-22

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card