CVE-2024-9477 in Air4443
Summary
by MITRE • 11/13/2024
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in AirTies Air4443 Firmware allows Cross-Site Scripting (XSS).
This issue affects Air4443 Firmware: through 14102024.
NOTE: The vendor was contacted and it was learned that the product classified as End-of-Life and End-of-Support.
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Analysis
by VulDB Data Team • 06/02/2026
This vulnerability represents a critical cross-site scripting weakness in the AirTies Air4443 wireless router firmware that enables remote attackers to inject malicious scripts into web pages viewed by users. The flaw occurs during the web page generation process where input parameters are not properly sanitized or escaped before being rendered in the browser interface. This allows an attacker to execute arbitrary JavaScript code within the context of the victim's browser session, potentially leading to session hijacking, credential theft, or unauthorized administrative actions. The vulnerability affects firmware versions through the date 14102024, indicating this was a known issue that remained unpatched in the affected release.
The technical implementation of this XSS vulnerability stems from inadequate input validation and output encoding mechanisms within the web administration interface of the AirTies Air4443 device. When users interact with the router's web management portal, input data from URL parameters, form fields, or other user-controllable sources is directly incorporated into generated HTML content without proper sanitization. This failure to neutralize potentially malicious input aligns with CWE-79, which specifically addresses cross-site scripting vulnerabilities resulting from insufficient input validation and output encoding. The vulnerability exists at the application layer where user-supplied data flows through the web server's processing pipeline into the browser rendering context, creating an attack surface that can be exploited by remote adversaries.
The operational impact of this vulnerability extends beyond simple script injection, as it provides attackers with the capability to fully compromise the affected network infrastructure. An attacker could leverage this XSS flaw to establish persistent access to the router's administrative interface, modify network configurations, redirect traffic, or even install malware on connected devices. The implications are particularly severe given that the Air4443 is a wireless access point that typically serves as a gateway to home or small office networks, making it a prime target for attackers seeking to establish footholds within larger network environments. The vulnerability also enables session manipulation attacks that could allow unauthorized access to the router's management functions without requiring authentication, effectively granting attackers administrative control over the device.
Given that the vendor has classified this product as End-of-Life and End-of-Support, there are no official patches or security updates available to address this vulnerability. This creates a significant risk for organizations and individuals who continue to operate these devices, as they remain exposed to exploitation without remediation options. The lack of vendor support means that any security research or community-driven fixes would be limited to reverse engineering efforts or third-party solutions that may not provide comprehensive protection. Organizations should consider immediate network segmentation strategies to isolate these devices from critical systems, implement network monitoring to detect potential exploitation attempts, and plan for device replacement or upgrade to supported firmware versions that address this and related vulnerabilities. The ATT&CK framework categorizes this type of vulnerability under T1566 for initial access through web application attacks, highlighting the importance of proper input validation and output encoding as fundamental security controls that should be implemented at every layer of the application stack.