CVE-2019-6965 in i-doit open
Summary
by MITRE
An XSS issue was discovered in i-doit Open 1.12 via the src/tools/php/qr/qr.php url parameter.
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Analysis
by VulDB Data Team • 08/25/2025
The vulnerability identified as CVE-2019-6965 represents a cross-site scripting flaw within the i-doit Open 1.12 web application, specifically affecting the qr.php endpoint located at src/tools/php/qr/qr.php. This issue arises from inadequate input validation and output encoding mechanisms that fail to properly sanitize user-supplied data before incorporating it into dynamic web content. The vulnerability manifests when the application processes the url parameter without sufficient sanitization measures, creating an opportunity for malicious actors to inject arbitrary JavaScript code into the application's response.
This particular vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is classified as a critical security weakness in web applications. The flaw enables attackers to execute malicious scripts in the context of other users' browsers, potentially leading to session hijacking, data theft, or unauthorized actions within the application. The qr.php endpoint serves as a legitimate tool for generating QR codes, making it an attractive target for exploitation since it processes external input that should be carefully validated. The vulnerability exists because the application fails to implement proper input sanitization techniques, allowing untrusted data to flow directly into the HTML output without appropriate encoding or validation.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable sophisticated attack vectors including session fixation, credential theft, and privilege escalation within the application. An attacker could craft malicious URLs with embedded JavaScript payloads that would execute whenever a victim accesses the QR code generation feature. This creates a persistent threat vector that can affect multiple users depending on the application's user base and access controls. The vulnerability is particularly concerning in enterprise environments where i-doit Open is used for IT asset management, as it could allow attackers to gain unauthorized access to sensitive infrastructure information and potentially escalate privileges to administrative levels. The attack surface is widened by the fact that QR code generation is a common feature used by both administrators and regular users, increasing the potential exposure window.
Mitigation strategies for CVE-2019-6965 should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's codebase. The immediate fix involves sanitizing all user-provided input through proper encoding techniques such as HTML entity encoding before incorporating data into web responses. Security patches should be implemented to ensure that the qr.php endpoint properly validates and sanitizes the url parameter using established security frameworks and libraries. Organizations should also consider implementing Content Security Policy headers to limit the execution of unauthorized scripts, while establishing robust input validation routines that reject or sanitize potentially malicious content. The remediation process should include thorough code review and security testing to prevent similar vulnerabilities from existing in other application components, following the principle of least privilege and defense in depth. Additionally, regular security assessments and vulnerability scanning should be conducted to identify and address similar weaknesses in the application's architecture.