CVE-2018-11403 in DomainMod
Summary
by MITRE
DomainMod v4.09.03 has XSS via the assets/edit/account-owner.php oid parameter.
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Analysis
by VulDB Data Team • 04/19/2025
The vulnerability identified as CVE-2018-11403 affects DomainMod version 4.09.03 and represents a cross-site scripting flaw that resides within the assets/edit/account-owner.php component of the application. This issue specifically manifests when the oid parameter is manipulated, allowing attackers to inject malicious scripts into the web application's response. The vulnerability falls under the category of reflected cross-site scripting as described by CWE-79, where malicious input is immediately reflected back to users without proper sanitization or encoding mechanisms. DomainMod is a web-based domain management system designed to help organizations manage their domain registrations, DNS records, and other related information, making it a critical component in organizational infrastructure management.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing script code within the oid parameter of the account-owner.php endpoint. When a victim navigates to this specially crafted URL, the malicious script executes within the victim's browser context, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of the victim. The flaw demonstrates poor input validation and output encoding practices, as the application fails to properly sanitize user-supplied data before incorporating it into dynamic web content. This vulnerability aligns with ATT&CK technique T1566.001 which focuses on spearphishing with malicious attachments, but in this case the attack vector involves malicious links rather than attachments. The reflected nature of the XSS means that the malicious payload is not stored on the server but is instead delivered through a crafted request that gets immediately executed.
The operational impact of this vulnerability extends beyond simple script execution as it can be leveraged for more sophisticated attacks within the organization's network. An attacker could potentially steal session cookies, redirect users to malicious sites, or perform actions that appear to originate from legitimate users within the DomainMod application. This poses significant risks to domain management integrity, as unauthorized modifications to account ownership could lead to complete compromise of domain registrations. The vulnerability affects any user who accesses the affected endpoint, making it particularly dangerous in environments where multiple administrators have access to the system. Organizations using DomainMod are at risk of having their domain management systems compromised, potentially leading to unauthorized domain transfers, DNS manipulation, or complete control over their web presence. The vulnerability also highlights the importance of proper security testing and input validation in web applications.
Mitigation strategies for CVE-2018-11403 should focus on implementing proper input validation and output encoding mechanisms throughout the application. The recommended approach includes sanitizing all user inputs, particularly parameters like oid in this case, through proper encoding techniques such as HTML entity encoding before rendering any user-supplied content in the web response. Organizations should also implement Content Security Policy headers to limit the execution of inline scripts and prevent unauthorized code injection. The most effective solution is to upgrade to a patched version of DomainMod that properly addresses the XSS vulnerability, as provided by the vendor. Additionally, implementing web application firewalls and regular security scanning can help detect and prevent exploitation attempts. Security awareness training for administrators can also reduce the risk of successful social engineering attacks that might leverage this vulnerability, as described in ATT&CK technique T1531 which covers data from local system. Regular code reviews focusing on input validation and output encoding practices should be conducted to prevent similar vulnerabilities from being introduced in future development cycles.