A vulnerability was found in Wavlink WL-NU516U1 240425. The impacted element is the function sub_404F68 of the file /cgi-bin/login.cgi. The manipulation of the argument homepage/hostname results in cross site scripting. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Wavlink
  • Wl-nu516u1
  • Wl-nu516u1 Firmware

No data.

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References
Link Providers
https://github.com/Litengzheng/vul_db/blob/main/WL-NU516U1/vul_14/README.md cve-icon cve-icon
https://github.com/Litengzheng/vul_db/blob/main/WL-NU516U1/vul_15/README.md cve-icon cve-icon
https://vuldb.com/?ctiid.351073 cve-icon cve-icon
https://vuldb.com/?id.351073 cve-icon cve-icon
https://vuldb.com/?submit.769652 cve-icon cve-icon
https://vuldb.com/?submit.769653 cve-icon cve-icon
History

Tue, 17 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 16 Mar 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Wavlink wl-nu516u1
Vendors & Products Wavlink wl-nu516u1

Sun, 15 Mar 2026 06:00:00 +0000

Type Values Removed Values Added
Description A vulnerability was found in Wavlink WL-NU516U1 240425. The impacted element is the function sub_404F68 of the file /cgi-bin/login.cgi. The manipulation of the argument homepage/hostname results in cross site scripting. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.
Title Wavlink WL-NU516U1 login.cgi sub_404F68 cross site scripting
First Time appeared Wavlink
Wavlink wl-nu516u1 Firmware
Weaknesses CWE-79
CWE-94
CPEs cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*
Vendors & Products Wavlink
Wavlink wl-nu516u1 Firmware
References
Metrics cvssV2_0

{'score': 4, 'vector': 'AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 3.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-03-15T05:32:08.404Z

Updated: 2026-03-17T13:46:28.034Z

Reserved: 2026-03-14T12:30:20.703Z

Link: CVE-2026-4166

cve-icon Vulnrichment

Updated: 2026-03-17T13:46:23.568Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-16T14:19:55.890

Modified: 2026-03-16T14:53:07.390

Link: CVE-2026-4166

cve-icon Redhat

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