CVE-2022-4794 in AAWP Plugin
Summary
by MITRE • 01/30/2023
The AAWP WordPress plugin before 3.12.3 can be used to abuse trusted domains to load malware or other files through it (Reflected File Download) to bypass firewall rules in companies.
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Analysis
by VulDB Data Team • 03/29/2025
The vulnerability identified as CVE-2022-4794 affects the AAWP WordPress plugin version 3.12.2 and earlier, presenting a critical security risk through a reflected file download mechanism that exploits trusted domain assumptions. This flaw allows attackers to manipulate the plugin's functionality to load malicious files from seemingly trusted sources, effectively bypassing network security controls including firewalls that rely on domain trust models. The vulnerability stems from improper input validation and sanitization within the plugin's file handling mechanisms, creating an attack surface where remote malicious actors can inject arbitrary file paths or URLs that get executed or downloaded by the target system. The security implications are particularly severe in enterprise environments where firewall rules are configured based on domain trust relationships, as this vulnerability directly undermines those security controls by enabling attackers to leverage legitimate domain trust to deliver malicious payloads.
The technical exploitation of this vulnerability occurs through a reflected file download attack vector where an attacker crafts malicious requests that appear to originate from trusted domains within the network infrastructure. The AAWP plugin's implementation fails to properly validate or sanitize user-supplied input parameters that control file loading operations, allowing attackers to inject malicious file paths or URLs that bypass standard security controls. This flaw aligns with CWE-434, which describes insecure file upload and download vulnerabilities, and specifically relates to the improper handling of file references that can lead to arbitrary code execution or unauthorized file access. The vulnerability is particularly dangerous because it leverages the trust relationship between network components, allowing attackers to circumvent security controls that depend on domain reputation or network segmentation. Attackers can exploit this by crafting malicious URLs or file references that appear legitimate to network security devices but actually deliver malicious content to unsuspecting users or systems.
The operational impact of CVE-2022-4794 extends beyond simple file download capabilities to potentially enable complete system compromise within enterprise environments. Organizations that rely on firewall rules and network access controls based on domain trust relationships face significant risk as this vulnerability allows attackers to bypass these controls entirely. The reflected file download mechanism can be used to deliver various types of malware including web shells, backdoors, or additional payload components that can establish persistent access to compromised systems. Network security teams may not detect these attacks because the malicious file downloads appear to originate from trusted domains, making the attacks harder to identify through traditional network monitoring approaches. This vulnerability particularly affects organizations using WordPress-based web applications where the AAWP plugin is installed, as it represents a direct attack path that can be exploited without requiring elevated privileges or complex exploitation techniques.
Organizations should immediately update to AAWP plugin version 3.12.3 or later to address this vulnerability, as the patch includes proper input validation and sanitization mechanisms that prevent malicious file references from being processed. Network administrators should implement additional monitoring for suspicious file download patterns and establish more robust validation controls that do not rely solely on domain trust relationships. The mitigation strategy should include implementing web application firewalls that can detect and block malicious file download attempts regardless of source domain, along with regular security audits to identify other potential reflected file download vulnerabilities within the WordPress ecosystem. Security teams should also consider implementing network segmentation controls that limit the impact of successful exploitation attempts, and establish incident response procedures specifically designed to handle reflected file download attacks. This vulnerability demonstrates the critical importance of validating all user input and not relying on trust assumptions for security controls, as outlined in the ATT&CK framework's approach to command and control communications and persistence mechanisms.