D-Link DNS-320 1.0.2 multi_uploadify.php Filedata[] unrestricted upload

Summaryinfo

A vulnerability labeled as critical has been found in D-Link DNS-320 1.0.2. Affected is an unknown function of the file /mydlink/multi_uploadify.php. Executing a manipulation of the argument Filedata[] can lead to unrestricted upload. This vulnerability appears as CVE-2026-16332. The attack may be performed from remote. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in D-Link DNS-320 1.0.2. It has been declared as critical. This vulnerability affects an unknown part of the file /mydlink/multi_uploadify.php. The manipulation of the argument Filedata[] with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at ucn9h68n9289.feishu.cn. This vulnerability was named CVE-2026-16332. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/21/2026). This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

It is possible to download the exploit at ucn9h68n9289.feishu.cn. It is declared as proof-of-concept. By approaching the search of inurl:mydlink/multi_uploadify.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-46143). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• D-Link

Name

• DNS-320

Version

• 1.0.2

License

• commercial

Website

• Vendor: https://www.dlink.com/

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #858465: D-Link (Shanghai)Limited Corp. D-Link DNS32 1.0.2 CWE-434 (Unrestricted Upload of File with Dangerous Type) (by ucn9h68n9289.feishu.cn)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion