PT-2026-33617 · Wavlink · Wl-Wn579A3

Ltzhust2 · Published 2026-04-19 · Updated 2026-04-19 · CVE-2026-6559

NVD

CVSS v2.0

5.0

Medium

AV:N/AC:L/Au:N/C:N/I:P/A:N

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.

Fix

XSS

Code Injection

Weakness Enumeration

CWE-79

CWE-94

Related Identifiers

CVE-2026-6559

Affected Products

Wl-Wn579A3

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-6559 · Security Note
• https://dl.wavlink.com/firmware/RD/WINSTAR_WN579A3-A-2026-03-10-94f93d4-WO-mt7628-squashfs-sysupgrade.bin · Patch
• https://github.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_16/README.md · Note
• https://vuldb.com/vuln/358196 · Note
• https://vuldb.com/vuln/358196/cti · Note
• https://vuldb.com/submit/785303 · Note
• https://twitter.com/VulmonFeeds/status/2045752397780177206 · Twitter Post