CVE-2020-9338 in Soplanning
Summary
by MITRE
SOPlanning 1.45 allows XSS via the "Your SoPlanning url" field.
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Analysis
by VulDB Data Team • 05/12/2025
The vulnerability identified as CVE-2020-9338 affects SOPlanning version 1.45 and represents a cross-site scripting flaw that can be exploited through the "Your SoPlanning url" field. This type of vulnerability falls under the broader category of web application security weaknesses that allow malicious actors to inject client-side scripts into web pages viewed by other users. The affected application appears to be a planning tool that likely manages scheduling and resource allocation, making it a potential target for attackers seeking to compromise user sessions or exfiltrate sensitive information. The vulnerability specifically manifests when the application fails to properly sanitize or encode user input submitted through the URL field, creating an opening for malicious script execution.
This cross-site scripting vulnerability operates at the application layer and represents a classic example of CWE-79 - Improper Neutralization of Input During Web Page Generation. The flaw occurs because the application does not adequately validate or escape the URL parameter before storing or displaying it in web responses. Attackers can craft malicious URLs containing script tags or other executable code that gets rendered when legitimate users view the page or interact with the application. The exploitation pathway follows the standard XSS attack pattern where the malicious input is stored and subsequently executed in the context of another user's browser session, potentially allowing for session hijacking, credential theft, or redirection to malicious sites. The vulnerability demonstrates a fundamental failure in input validation and output encoding practices that are essential for web application security.
The operational impact of this vulnerability extends beyond simple script execution and can lead to significant security consequences within the targeted environment. When exploited, the XSS flaw could enable attackers to steal session cookies, allowing them to impersonate legitimate users and gain unauthorized access to the planning system. The attack could also facilitate the delivery of malware through drive-by downloads, or be used to redirect users to phishing sites that attempt to capture credentials. Given that SOPlanning likely handles sensitive scheduling and resource planning information, the compromise of user sessions could lead to unauthorized modifications of plans, access to confidential data, or disruption of business operations. The vulnerability affects all users who interact with the application, particularly those who may be less security-aware and could inadvertently trigger the malicious script execution through normal application use.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and output encoding mechanisms throughout the application's codebase. The primary fix involves sanitizing all user-supplied input, particularly the URL field, by implementing strict validation rules and HTML encoding of output before rendering. Organizations should employ Content Security Policy headers to limit script execution and prevent unauthorized code injection. Regular security testing including dynamic and static analysis should be conducted to identify similar vulnerabilities in other application components. The remediation process should also include comprehensive code reviews focusing on input handling, and implementation of secure coding practices that align with industry standards such as the OWASP Top Ten and NIST Cybersecurity Framework. Additionally, user education about the risks of clicking suspicious links or entering untrusted URLs can help reduce the likelihood of successful exploitation. The fix should be implemented following secure development lifecycle practices to prevent similar vulnerabilities from emerging in future versions of the application.