CVE-2026-6559
Cross-Site Scripting in Wavlink WL-WN579A3 Login CGI
Publication date: 2026-04-19
Last updated on: 2026-04-19
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wavlink | wl-wn579a3 | 220323 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | 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. |
| CWE-94 | The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the Wavlink WL-WN579A3 device, specifically in the function sub_401F80 of the file /cgi-bin/login.cgi. It involves manipulation of the Hostname argument, which leads to a cross-site scripting (XSS) vulnerability. This means an attacker can remotely exploit this flaw to inject malicious scripts.
How can this vulnerability impact me? :
The vulnerability allows remote attackers to perform cross-site scripting attacks by manipulating the Hostname argument. This can lead to the execution of malicious scripts in the context of the affected device's web interface, potentially compromising user interactions or session integrity. However, the impact is limited to integrity, with no direct confidentiality or availability impact noted.
What immediate steps should I take to mitigate this vulnerability?
The recommended immediate step to mitigate this vulnerability is to upgrade the affected component to the fixed version released by the vendor.