CVE-2022-1571 in facturascripts
Summary
by MITRE • 05/04/2022
Cross-site scripting - Reflected in Create Subaccount in GitHub repository neorazorx/facturascripts prior to 2022.07. This vulnerability can be arbitrarily executed javascript code to steal user'cookie, perform HTTP request, get content of `same origin` page, etc ...
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Analysis
by VulDB Data Team • 05/07/2022
This cross-site scripting vulnerability exists in the Facturascripts accounting software application hosted on GitHub at neorazorx/facturascripts prior to version 2022.07. The flaw specifically affects the Create Subaccount functionality where user input is not properly sanitized or validated before being reflected back to the browser. This represents a classic reflected xss vulnerability that allows attackers to inject malicious javascript code into the application's response. The vulnerability stems from improper handling of user-supplied data in the subaccount creation process, where input parameters are directly incorporated into the HTML response without adequate encoding or validation mechanisms.
The technical exploitation of this vulnerability enables attackers to execute arbitrary javascript code within the context of authenticated users' browsers. When a victim visits a maliciously crafted URL containing the xss payload, the javascript code executes in their browser session, potentially stealing session cookies, performing unauthorized http requests on behalf of the user, or accessing sensitive content from same origin pages. This type of vulnerability falls under CWE-79 which defines Cross-Site Scripting as a common web application security flaw. The attack vector specifically aligns with the ATT&CK technique T1531 which involves using malicious scripts to compromise user sessions and gain unauthorized access to web applications.
The operational impact of this vulnerability is significant as it can lead to complete account takeovers, data exfiltration, and unauthorized financial transactions within the Facturascripts application. Since the vulnerability affects the subaccount creation feature, attackers could potentially manipulate user permissions or access sensitive accounting data. The reflected nature of the vulnerability means that attackers need to trick users into clicking malicious links rather than having direct access to the application's backend. This makes the attack more difficult to detect but equally dangerous as it can persist across multiple user sessions and potentially compromise the entire accounting system. The vulnerability affects users who have administrative privileges and can create subaccounts, making it particularly dangerous in enterprise environments where financial data is handled.
Mitigation strategies should include implementing proper input validation and output encoding for all user-supplied data in the subaccount creation process. The application should sanitize all input parameters before incorporating them into HTML responses, using techniques such as html encoding or context-appropriate escaping. Additionally, implementing a Content Security Policy (CSP) can help prevent the execution of unauthorized scripts even if the vulnerability is present. The recommended fix involves upgrading to Facturascripts version 2022.07 or later, which contains the necessary security patches. Organizations should also consider implementing web application firewalls and regular security scanning to detect similar vulnerabilities in their web applications. The vulnerability demonstrates the critical importance of proper input sanitization in web applications and aligns with security best practices outlined in the OWASP Top Ten project, specifically addressing the risks associated with insecure data handling and user input validation.