Wavlink WL-WN578W2 221110 POST Request /cgi-bin/login.cgi homepage/hostname/login_page cross site scripting

Summaryinfo

A vulnerability identified as problematic has been detected in Wavlink WL-WN578W2 221110. This impacts an unknown function of the file /cgi-bin/login.cgi of the component POST Request Handler. The manipulation of the argument homepage/hostname/login_page leads to cross site scripting. This vulnerability is documented as CVE-2026-4544. The attack can be initiated remotely. Additionally, an exploit exists. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Wavlink WL-WN578W2 221110. This issue affects some unknown functionality of the file /cgi-bin/login.cgi of the component POST Request Handler. The manipulation of the argument homepage/hostname/login_page with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-4544. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation needs additional levels of successful authentication. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The exploit is available at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-14297). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Wavlink

Name

• WL-WN578W2

Version

• 221110

License

• commercial

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Exploitinginfo

Threat Intelligenceinfo

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Entryinfo

Submitinfo

Accepted

• Submit #774692: Wavlink WL-WN578W2 V221110 Cross Site Scripting (by LtzHuster)

Duplicate

• Submit #XXXXXX: Xxxxxxx Xx-xxxxxxx Xxxxxxx Xxxxx Xxxx Xxxxxxxxx (by LtzHuster)
• Submit #XXXXXX: Xxxxxxx Xx-xxxxxxx Xxxxxxx Xxxxx Xxxx Xxxxxxxxx (by LtzHuster)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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