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Threat Model Analysis for semantic-org/semantic-ui

Threat: Outdated Dropdown Component XSS

  • Threat: Outdated Dropdown Component XSS

    • Description: An attacker exploits a known vulnerability in an older version of Semantic UI's dropdown module. The attacker crafts a malicious payload that is injected into the dropdown's options or data source. When a user interacts with the dropdown, the payload executes, potentially stealing cookies, redirecting the user, or modifying the page content. This is a direct threat because it leverages a vulnerability within the Semantic UI component itself, assuming the application uses user-provided data to populate dropdown.
    • Impact: Cross-Site Scripting (XSS), leading to session hijacking, data theft, or defacement.
    • Affected Component: dropdown module (JavaScript and potentially associated CSS).
    • Risk Severity: High
    • Mitigation Strategies:
      • Update to the latest stable version of Semantic UI.
      • Sanitize and validate all data used to populate the dropdown, regardless of the source (even if it seems "safe"). Use a robust HTML sanitization library.
      • Ensure that the dropdown's configuration does not allow arbitrary HTML content.
      • Implement a Content Security Policy (CSP) to restrict the execution of inline scripts.

Threat: Modal Component Content Injection

  • Threat: Modal Component Content Injection

    • Description: An attacker leverages a vulnerability or misconfiguration in the modal component to inject malicious HTML or JavaScript. If the modal's content is dynamically generated from user input without proper sanitization, and the Semantic UI version used has a vulnerability allowing this, or if the modal is explicitly configured (incorrectly) to allow arbitrary HTML, an attacker can inject a script that executes when the modal is displayed. The direct threat here is the potential for a vulnerability within Semantic UI's modal handling, combined with improper application-level handling.
    • Impact: Cross-Site Scripting (XSS), leading to session hijacking, data theft, or defacement.
    • Affected Component: modal module (JavaScript and potentially associated CSS).
    • Risk Severity: High
    • Mitigation Strategies:
      • Sanitize and validate all data used to populate the modal's content. Use a robust HTML sanitization library.
      • Ensure that the modal's configuration does not allow arbitrary HTML content. Use the appropriate settings to display only plain text or pre-sanitized HTML.
      • Implement a Content Security Policy (CSP) to restrict the execution of inline scripts.
      • Avoid using user-provided input directly in the modal's title or other sensitive areas.
      • Update to the latest stable version of Semantic UI.

Threat: Form Validation Bypass (Semantic UI's form module) - Conditional High

  • Threat: Form Validation Bypass (Semantic UI's form module) - Conditional High

    • Description: An attacker bypasses Semantic UI's built-in form validation by manipulating the form data before it is submitted. The attacker might disable JavaScript, modify the form's HTML structure, or send a crafted request directly to the server. This is conditionally high because it's primarily an application-level vulnerability (relying solely on client-side validation). However, if a specific version of Semantic UI's form module had a flaw that made bypass easier than normal client-side bypass, it would become a direct threat. We're including it as "High" with this caveat.
    • Impact: Submission of invalid or malicious data, potentially leading to data corruption, SQL injection (if the backend doesn't validate), or other application-specific vulnerabilities.
    • Affected Component: form module (JavaScript).
    • Risk Severity: High (Conditional - dependent on application's reliance on client-side validation and potential vulnerabilities in specific Semantic UI versions).
    • Mitigation Strategies:
      • Never rely solely on client-side validation (including Semantic UI's). Implement robust server-side validation for all form data.
      • Treat Semantic UI's form validation as a usability feature, not a primary security control.
      • Use server-side frameworks and libraries that provide built-in validation mechanisms.
      • Consider using techniques like CSRF protection to prevent attackers from submitting forged requests.
      • Update to the latest stable version of Semantic UI.