CVE-2026-6559CWE-79CWE-94

Wavlink WL-WN579A3 login.cgi sub_401F80 cross site scripting

Medium · published April 19, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
38.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X
EPSS
0.00449 · 38.0th percentile
Weaknesses
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'); CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-04-19T05:15Z
EPSS history
Timeline
  • 19 APR 05:15Z
    Wavlink WL-WN579A3 login.cgi sub_401F80 cross site scripting
    cvelistv5