CVE-2025-13698
Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability
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.
INFO
Published Date :
Dec. 23, 2025, 10:15 p.m.
Last Modified :
Dec. 23, 2025, 10:15 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-13698
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.0 | MEDIUM | 99f1926a-a320-47d8-bbb5-42feb611262e | ||||
| CVSS 3.0 | MEDIUM | [email protected] | ||||
| CVSS 3.0 | MEDIUM | MITRE-CVE |
Solution
- Validate user-supplied paths before file operations.
- Apply security patches provided by the vendor.
- Restrict access to backup configuration functionalities.
- Monitor system for unauthorized file creation.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-13698.
| URL | Resource |
|---|---|
| https://github.com/opnsense/core/commit/cb15c935137d05c86a1e6cf12af877e9c32a23af | |
| https://www.zerodayinitiative.com/advisories/ZDI-25-1022/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-13698 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-13698
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-13698 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-13698 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Dec. 23, 2025
Action Type Old Value New Value Added 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. Added CVSS V3 AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N Added CWE CWE-22 Added Reference https://github.com/opnsense/core/commit/cb15c935137d05c86a1e6cf12af877e9c32a23af Added Reference https://www.zerodayinitiative.com/advisories/ZDI-25-1022/