CVE-2018-19752 in DomainMod
Summary
by MITRE
DomainMOD through 4.11.01 has XSS via the assets/add/registrar.php notes field for the Registrar.
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Analysis
by VulDB Data Team • 04/28/2025
The vulnerability CVE-2018-19752 represents a cross-site scripting flaw discovered in DomainMOD version 4.11.01 and earlier, specifically within the assets/add/registrar.php component of the application. This issue affects the Registrar notes field where user input is not properly sanitized or validated before being rendered back to users. The vulnerability stems from inadequate input filtering mechanisms that fail to prevent malicious script execution within the web application's context. Attackers can exploit this weakness by injecting malicious javascript code into the notes field during registrar registration, which then executes in the browsers of other users who view the affected data.
The technical implementation of this vulnerability aligns with CWE-79, which describes cross-site scripting flaws where web applications fail to properly validate or escape user-supplied data before incorporating it into dynamic web pages. The flaw exists in the application's data handling pipeline where input from the notes field bypasses security controls designed to prevent malicious code injection. This particular vulnerability demonstrates a classic insecure data handling pattern where user-provided content flows directly into the HTML output without proper sanitization or encoding. The attack vector is straightforward as it requires no special privileges or complex exploitation techniques, making it particularly dangerous in environments where multiple users interact with the application.
The operational impact of this vulnerability extends beyond simple data corruption or theft of session cookies. An attacker who successfully exploits this XSS flaw can potentially execute arbitrary javascript code within the context of other users' browsers, enabling various malicious activities including session hijacking, credential theft, redirection to malicious sites, or data exfiltration. The vulnerability affects the entire DomainMOD user base that interacts with registrar information, potentially compromising sensitive domain management data. Additionally, the exploitation can lead to privilege escalation if the application does not properly enforce access controls or if the attacker can manipulate the application's functionality through the executed scripts.
Mitigation strategies for this vulnerability should encompass multiple layers of protection following established security practices. Immediate remediation involves implementing proper input validation and output encoding mechanisms to prevent malicious scripts from executing within the application's context. The application should sanitize all user-provided data in the notes field before storing or rendering it, employing techniques such as HTML entity encoding or content security policies to prevent script execution. Organizations should also consider implementing proper input length restrictions, character set validation, and regular security testing to identify similar vulnerabilities. The fix should align with ATT&CK technique T1213 by ensuring proper data validation and sanitization processes are in place to prevent unauthorized access to sensitive data through client-side vulnerabilities. Regular security updates and patch management procedures should be enforced to prevent similar issues from arising in future versions of the application.