CVE-2026-6559

MEDIUM

Wavlink WL-WN579A3 login.cgi sub_401F80 cross site scripting

Title source: cna
STIX 2.1

Description

A weakness has been identified in Wavlink WL-WN579A3 220323. This affects the function sub_401F80 of the file /cgi-bin/login.cgi. This manipulation of the argument Hostname causes cross site scripting. Remote exploitation of the attack is possible. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-358196 | Wavlink WL-WN579A3 login.cgi sub_401F80 cross site scripting
https://vuldb.com/vuln/358196
Signature, Permissions Required signature permissions-required
VDB-358196 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/358196/cti
Third Party Advisory third-party-advisory
Submit #785303 | Wavlink WL-WN579A3 V220323 Cross Site Scripting
https://vuldb.com/submit/785303

Scores

CVSS v3 4.3
EPSS 0.0027
EPSS Percentile 17.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79 CWE-94
Status published
Products (1)
Wavlink/WL-WN579A3 220323
Published Apr 19, 2026
Tracked Since Apr 19, 2026