CVE-2026-6559
Medium
Low
Medium
High
Critical
4.3
CVSS Score
Vulnerability 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.
CVSS Metrics
Common Vulnerability Scoring System
Vector String:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack Vector
N
Attack Complexity
L
Privileges Required
N
User Interaction
R
Scope
U
Confidentiality
N
Integrity
L
Availability
N
References & Resources
-
https://dl.wavlink.com/firmware/RD/WINSTAR_WN579A3-A-2026-03-10-94f93d4-WO-mt7628-squashfs-sysupgrade.bincna@vuldb.com
-
https://github.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_16/README.mdcna@vuldb.com
-
https://vuldb.com/submit/785303cna@vuldb.com
-
https://vuldb.com/vuln/358196cna@vuldb.com
-
https://vuldb.com/vuln/358196/cticna@vuldb.com
Severity Details
4.3
out of 10.0
Medium
Weakness Type (CWE)
CWE-79
Top 25 #1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Description
- The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
- Exploit Likelihood
- High
- Typical Severity
- Medium
- OWASP Top 10
- A03:2021-Injection
- Abstraction Level
- Base
Key Information
- Published Date
- April 19, 2026
