PT-2026-26975 · Wavlink · Wavlink Wl-Wn578W2

Ltzhuster + 1 · Published 2026-03-22 · Updated 2026-03-23 · CVE-2026-4544

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Wavlink WL-WN578W2 version 221110

Description A cross-site scripting issue exists in the POST Request Handler component of Wavlink WL-WN578W2. The issue is related to the manipulation of the homepage/hostname/login page argument within a POST request to the /cgi-bin/login.cgi endpoint. This allows for remote execution of malicious scripts. The exploit has been publicly disclosed.

Recommendations Versions prior to 221110 should be updated. As a temporary workaround, consider restricting access to the /cgi-bin/login.cgi endpoint.

Exploit

Fix

Code Injection

XSS

Weakness Enumeration

CWE-94

CWE-79

Related Identifiers

CVE-2026-4544

Affected Products

Wavlink Wl-Wn578W2

References · 12

• 🔥 https://github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_7/README.md · Exploit
• 🔥 https://github.com/Litengzheng/vul_db/blob/main/WL-WN578W2/vul_6/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-4544 · Security Note
• https://vuldb.com/?id.352361 · Note
• https://twitter.com/CVEnew/status/2035992541368140161 · Twitter Post
• https://twitter.com/CVEarity/status/2035714856914145548 · Twitter Post
• https://vuldb.com/?ctiid.352361 · Note
• https://vuldb.com/?submit.774693 · Note
• https://vuldb.com/?submit.774692 · Note
• https://twitter.com/cyberbivash/status/2035669287940071644 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2035678895588958328 · Twitter Post
• https://vuldb.com/?submit.774696 · Note