Severity: HIGH
Description: The package s-cart/core before 4.4 are vulnerable to Cross-site Scripting (XSS) via the admin panel.
CVSS Score: 7.3
B
No data available.
No data available.
1. Risk Assessment
The vulnerability, CVE-2020-28456, is a Cross-site Scripting (XSS) vulnerability affecting the s-cart/core package versions prior to 4.4. XSS allows an attacker to inject malicious client-side scripts into web pages viewed by other users. The CVSS score of 7.3 (HIGH) indicates a significant risk. The attack vector is network-based, meaning it can be exploited remotely without requiring local access. The attack complexity is low, suggesting it's relatively easy to exploit. Privileges are not required, and user interaction is not necessarily needed, making it potentially impactful. The vulnerability impacts confidentiality, integrity, and availability to a low degree, meaning an attacker could steal cookies, modify page content, or potentially cause minor disruptions. The business impact could range from defacement of the admin panel to potential compromise of administrative credentials, depending on the specific XSS payload used. The EPSS score of 0.003260000 suggests a moderate probability of exploitation within the broader landscape of vulnerabilities.
2. Potential Attack Scenarios
An attacker could exploit this XSS vulnerability by crafting a malicious script and injecting it into an input field within the s-cart admin panel. For example, if a poorly sanitized field allows HTML input, an attacker could submit a script tag containing JavaScript code. When an administrator views the page containing the injected script, the script executes in their browser context. This could allow the attacker to steal the administrator's session cookie, giving them control of the admin panel. Alternatively, the attacker could redirect the administrator to a phishing page disguised as the s-cart admin panel, capturing their login credentials. The attack vector is primarily via HTTP requests to the admin panel, and the attack process involves identifying a vulnerable input field and crafting a payload that executes when the page is rendered. Potential outcomes include administrative account takeover, defacement of the admin interface, and potential access to sensitive data stored within the s-cart system.
3. Mitigation Recommendations
The primary mitigation for CVE-2020-28456 is to upgrade the s-cart/core package to version 4.4 or later. This update includes the necessary sanitization to prevent the XSS vulnerability. Immediate action should be taken to patch all affected instances of s-cart. Further, ensure input validation and output encoding are consistently applied throughout the s-cart application, particularly in areas where user-supplied data is displayed in the admin panel. Consider implementing a Web Application Firewall (WAF) to provide an additional layer of defense against XSS attacks. Regularly review and update the s-cart installation to benefit from future security updates and patches. Relevant resources include the s-cart release notes: https://github.com/s-cart/s-cart/releases/tag/v4.4 and the Snyk vulnerability details: https://snyk.io/vuln/SNYK-PHP-SCARTCORE-1047609.
4. Executive Summary
CVE-2020-28456 is a HIGH severity Cross-site Scripting (XSS) vulnerability affecting the s-cart e-commerce platform. This vulnerability allows attackers to inject malicious scripts into the admin panel, potentially leading to administrative account takeover or defacement of the platform. The risk is significant because the vulnerability is easily exploitable and doesn't require user interaction. Patching to version 4.4 or later is the most effective mitigation. Addressing this vulnerability is crucial to maintain the integrity and availability of the s-cart platform and protect sensitive administrative data. Failure to patch could result in business disruption, data compromise, and loss of customer trust. Prompt action is recommended to minimize the risk posed by this vulnerability.
Severity: HIGH
Description: This affects the package s-cart/core before 4.4. The search functionality of the admin dashboard in core/src/Admin/Controllers/AdminOrderController.phpindex is vulnerable to XSS.
CVSS Score: 7.2
B
No data available.
No data available.
1. Risk Assessment
The vulnerability, CVE-2020-28457, is a Cross-Site Scripting (XSS) flaw present in the s-cart/core package before version 4.4. Specifically, the search functionality within the admin dashboard is susceptible to XSS. The CVSS v3.1 base score is 7.2 (HIGH), indicating a significant risk. This XSS vulnerability is network accessible, with low attack complexity and requires no privileges or user interaction to exploit. The scope is changed, meaning the attacker can affect resources beyond their own session. Successful exploitation could lead to low impact on both confidentiality and integrity. The EPSS score of 0.003190000 suggests a relatively low but not insignificant probability of exploitation in the wild. The business impact of this XSS vulnerability can range from defacement of the admin dashboard to potential theft of sensitive admin session data, potentially allowing an attacker to gain control of the s-cart instance. The likelihood of exploitation is moderate, given the ease with which XSS vulnerabilities can be exploited, and the admin dashboard is often accessed by multiple users.
2. Potential Attack Scenarios
An attacker could leverage this XSS vulnerability to inject malicious JavaScript code into the search field of the admin dashboard. For example, an attacker could craft a search query containing the following payload: `<script>alert('XSS Vulnerability')</script>`. When an administrator performs this search, the injected JavaScript will execute within the context of the admin dashboard, triggering an alert box. A more sophisticated attack could involve stealing the administrator’s session cookie by injecting JavaScript that sends the cookie to a remote server controlled by the attacker. This allows the attacker to impersonate the administrator and gain full control over the s-cart instance. The attack vector is network based, meaning the attacker can exploit the vulnerability remotely via the web interface. The attack process involves crafting a malicious search query, submitting it through the admin dashboard search function, and observing the execution of the injected JavaScript.
3. Mitigation Recommendations
The primary mitigation for this vulnerability is to upgrade the s-cart/core package to version 4.4 or later. This version includes the fix for the XSS vulnerability in the admin dashboard search functionality. The upgrade can be performed by following the release notes and commit history available on the s-cart GitHub repository: https://github.com/s-cart/s-cart/releases/tag/v4.4 and https://github.com/s-cart/s-cart/commit/4406d407ad363ee7e4795ee290c9d2430b0413f8. As a short-term mitigation, if immediate patching is not possible, input validation and output encoding should be implemented on the search input field to sanitize potentially malicious JavaScript code. This will prevent the injected script from executing within the context of the admin dashboard. Regularly monitor the s-cart instance for any suspicious activity, especially related to admin sessions.
4. Executive Summary
CVE-2020-28457 is a HIGH severity Cross-Site Scripting (XSS) vulnerability affecting the s-cart/core e-commerce platform. This vulnerability allows attackers to inject malicious JavaScript code into the admin dashboard, potentially leading to the theft of administrator session data or defacement of the admin interface. The ease of exploitation and potential impact on confidentiality and integrity make this a significant risk. We recommend upgrading to version 4.4 of s-cart/core as soon as possible to mitigate the vulnerability. Failure to address this vulnerability could result in compromised administrative access and potential disruption to business operations. Prompt action is recommended to ensure the security and integrity of your s-cart e-commerce instance.